Douglas Clay Ridgley
Œuvres dans le domaine public depuis le 1ᵉʳ janvier 2023
Règle « vie + 70 ans » (Union européenne). Le statut peut différer selon les pays — voir la méthodologie.
29 œuvres recensées
- Asia, Africa and Australia: A Reference Notebook for Pupils to Accompany Any Textbook in Geography
- Home Geography: A First Year in Geography: A Textbook for Pupils
- Studies in the geography of North America: a reference notebook for pupils to accompany any textbook in geography
- Studies in World Geography
- Local Geography for Beginners
- A College Workbook in Weather and Climate
- A Five Year Course of Study in Geography for the Elementary School
- A Study of Children's Learning About Places
- Economic Geography: A Reference Notebook for High School Students, to Accompany Any Textbook in Economic Geography
- Fundamentals of Climate
- General Circulation of the Atmosphere
- Geographic Principles: Their Application to the Elementary School
- Home Geography: A Textbook for Pupils, Based on the Illinois State Course of Study
- Home Journeys: A Workbook for Beginners in Geography
- I. The County as a Unit of Study in the Schools of Illinois. II. Department of Geography and the State Course of Study
- Influence of Geography on Our Economic Life
- Mathematical Geography and Geographic Factors of World Wide Application
- Physiography: A Reference Notebook for High School Students: To Accompany Any Elementary Textbook in Physiography
- Problems in Economic Geography
- Studies in Economic Geography: A Workbook to Accompany Any Textbook in Economic Geography
- Studies in the Geography of North America: A Reference Notebook for Pupils to Accompany any Textbook in Geography
- Studies in the Geography of Ohio and North America: A Reference Workbook for Grade Pupils to Accompany Any Textbook in Geography
- Studies in the Geography of South America, Europe, and Asia: A Reference Notebook for Pupils to Accompany Any Textbook in Geography
- Studies in the Geography of South America: A Reference Notebook for Pupils to Accompany Any Textbook in Geography
- Teachers' Guide for the Use of the 600 Set of Keystone Stereographs and Lantern Slides for Visual Instruction
- The Geography of Illinois
- Vegetation Zones of the Earth
- Western Continents: A Workbook for the Study of North America and South America
- World Journeys: A Workbook for the Study of World Geography