Cita APA (7a ed.)

Richardson, H. W. (1960). Freehand lettering. Sterling.

Cita Chicago Style (17a ed.)

Richardson, Harry Wilmont. Freehand Lettering. New York: Sterling, 1960.

Cita MLA (9a ed.)

Richardson, Harry Wilmont. Freehand Lettering. Sterling, 1960.