APA (7th ed.) Citation

(1978). Recent research concerning the development of spatial and geometric concepts.

Chicago Style (17th ed.) Citation

Recent Research Concerning the Development of Spatial and Geometric Concepts. Columbus, Ohio, 1978.

MLA (9th ed.) Citation

Recent Research Concerning the Development of Spatial and Geometric Concepts. 1978.

Warning: These citations may not always be 100% accurate.