APA (7e ed.) Bronvermelding
Hanna, P. R., & Hanna, P. R. (1966). Geography in the teaching of social studies: Concepts and skills.
Chicago (17e ed.) Bronvermelding
Hanna, Paul R., en Paul R. Hanna. Geography in the Teaching of Social Studies: Concepts and Skills. 1966.
MLA (9e ed.) Bronvermelding
Hanna, Paul R., en Paul R. Hanna. Geography in the Teaching of Social Studies: Concepts and Skills. 1966.
Let op: Deze citaties zijn niet altijd 100% accuraat.