APA (7e ed.) Bronvermelding

Keedy, M. L. (1966). Answers and instructor commentary for geometry: A modern introduction. Addison-Wesley.

Chicago (17e ed.) Bronvermelding

Keedy, Mervin L. Answers and Instructor Commentary for Geometry: A Modern Introduction. Massachussetts: Addison-Wesley, 1966.

MLA (9e ed.) Bronvermelding

Keedy, Mervin L. Answers and Instructor Commentary for Geometry: A Modern Introduction. Addison-Wesley, 1966.