Cita APA (7a ed.)

Wickersham, J. P. Methods of instrustion. Lippincott.

Cita Chicago Style (17a ed.)

Wickersham, James Pyle. Methods of Instrustion. Philadelphia: Lippincott.

Cita MLA (9a ed.)

Wickersham, James Pyle. Methods of Instrustion. Lippincott.