The Whistlers :
Jasper National Park /
[text written by David and Andrea Spalding and Carol Boyle, Parks Canada].

APA Citation

Spalding, D. A. E., Boyle, C., Spalding, A., Canada. Parks. (1986). The Whistlers: Jasper National Park. [Ottawa, Ont.]: Environment Canada, Parks.

MLA Citation

Spalding, David A. E, Carole Boyle, Andrea Spalding, and Canada. Parks. The Whistlers: Jasper National Park. [Ottawa, Ont.]: Environment Canada, Parks, 1986.

Warning: These citations may not always be complete (especially for serials).