Cita APA (7th ed.)

Hardy, W. G. (1967). Alberta: A natural history. The Patrons.

Cita Chicago (17th ed.)

Hardy, W. G. Alberta: A Natural History. Edmonton: The Patrons, 1967.

Cita MLA (9th ed.)

Hardy, W. G. Alberta: A Natural History. The Patrons, 1967.