APA (7e ed.) Bronvermelding

Duffus, R. L. (1930). Books: Their place in a democracy. Houghton Mifflin company.

Chicago (17e ed.) Bronvermelding

Duffus, R. L. Books: Their Place in a Democracy. Boston: Houghton Mifflin company, 1930.

MLA (8e ed.) Bronvermelding

Duffus, R. L. Books: Their Place in a Democracy. Houghton Mifflin company, 1930.

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