Cita APA (7a ed.)

Saudek, R. (1934). Can different writers produce identical handwritings? [s.n.].

Cita Chicago Style (17a ed.)

Saudek, Robert. Can Different Writers Produce Identical Handwritings? [S.l.]: [s.n.], 1934.

Cita MLA (9a ed.)

Saudek, Robert. Can Different Writers Produce Identical Handwritings? [s.n.], 1934.