Cita APA (7a ed.)

Urban, K. (1972). Spring wildflowers of the Blue Mountains. Blue Mountain Community College.

Cita Chicago Style (17a ed.)

Urban, Karl. Spring Wildflowers of the Blue Mountains. Pendleton, Or.: Blue Mountain Community College, 1972.

Cita MLA (8a ed.)

Urban, Karl. Spring Wildflowers of the Blue Mountains. Blue Mountain Community College, 1972.

Precaución: Estas citas no son 100% exactas.