APA (7e ed.) Bronvermelding

Clark University (Worcester, Mass.). (1925). Economic geography. Clark University.

Chicago (17e ed.) Bronvermelding

Clark University (Worcester, Mass.). Economic Geography. Worcester, Mass: Clark University, 1925.

MLA (9e ed.) Bronvermelding

Clark University (Worcester, Mass.). Economic Geography. Clark University, 1925.

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