Cita APA (7th ed.)

(1966). Lund Humphries desk book (4a. ed.). Percy Lund Humphries.

Cita Chicago (17th ed.)

Lund Humphries Desk Book. 4a. ed. Londres: Percy Lund Humphries, 1966.

Cita MLA (9th ed.)

Lund Humphries Desk Book. 4a. ed. Percy Lund Humphries, 1966.