Cita APA (7th ed.)

Hoban, G. (1990). The Marine Olaf. Omnium Publishing.

Cita Chicago (17th ed.)

Hoban, Gordon. The Marine Olaf. Kukuihaele: Omnium Publishing, 1990.

Cita MLA (8th ed.)

Hoban, Gordon. The Marine Olaf. Omnium Publishing, 1990.