APA (7e ed.) Bronvermelding

(1913). Inherited tendencies of secondary instruction in the United States / by Herbert Galen Lull.

Chicago (17e ed.) Bronvermelding

Inherited Tendencies of Secondary Instruction in the United States / by Herbert Galen Lull. 1913.

MLA (9e ed.) Bronvermelding

Inherited Tendencies of Secondary Instruction in the United States / by Herbert Galen Lull. 1913.

Let op: Deze citaties zijn niet altijd 100% accuraat.