APA (7e ed.) Bronvermelding

Denis Haeger, J. (1991). John Jacob Astor: Business and Finance in the Early Republic. Wayne State University Press.

Chicago (17e ed.) Bronvermelding

Denis Haeger, John. John Jacob Astor: Business and Finance in the Early Republic. Wayne State University Press, 1991.

MLA (9e ed.) Bronvermelding

Denis Haeger, John. John Jacob Astor: Business and Finance in the Early Republic. Wayne State University Press, 1991.

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