Style de citation APA (7e éd.)

Middleton, T. C. (1907). State of Geographical Knowledge at the Time of the Discovery of America, A.D. 1492. Delaware Co., Pa..

Style de citation Chicago (17e éd.)

Middleton, Thomas C. State of Geographical Knowledge at the Time of the Discovery of America, A.D. 1492. Delaware Co., Pa., 1907.

Style de citation MLA (8e éd.)

Middleton, Thomas C. State of Geographical Knowledge at the Time of the Discovery of America, A.D. 1492. Delaware Co., Pa., 1907.