Cita APA (7a ed.)

Porsild, A. E. (1959). Botanical excursion to Jasper and Banff National Parks, Alberta: Alpine and subalpine flora.

Cita Chicago Style (17a ed.)

Porsild, A. E. Botanical Excursion to Jasper and Banff National Parks, Alberta: Alpine and Subalpine Flora. Ottawa, 1959.

Cita MLA (8a ed.)

Porsild, A. E. Botanical Excursion to Jasper and Banff National Parks, Alberta: Alpine and Subalpine Flora. 1959.