Cita APA (7a ed.)

Salter, W. M. (1892). Society for Ethical Culture, Philadelphia. [s.n.].

Cita Chicago Style (17a ed.)

Salter, William Mackintire. Society for Ethical Culture, Philadelphia. [S.l.]: [s.n.], 1892.

Cita MLA (9a ed.)

Salter, William Mackintire. Society for Ethical Culture, Philadelphia. [s.n.], 1892.