APA (7e ed.) Bronvermelding

(1876). Sadlier's excelsior introduction to geography: Designed for junior classes. W.H. Sadlier.

Chicago (17e ed.) Bronvermelding

Sadlier's Excelsior Introduction to Geography: Designed for Junior Classes. New York: W.H. Sadlier, 1876.

MLA (8e ed.) Bronvermelding

Sadlier's Excelsior Introduction to Geography: Designed for Junior Classes. W.H. Sadlier, 1876.