Cita APA (7a ed.)

Osborn, A. S. (1933). Progress in Proof of Handwriting and Documents.

Cita Chicago Style (17a ed.)

Osborn, Albert S. Progress in Proof of Handwriting and Documents. 1933.

Cita MLA (9a ed.)

Osborn, Albert S. Progress in Proof of Handwriting and Documents. 1933.