Gaya APA

Kearns, H, S, J. et al (2014). Risk of white pine blister rust to limber pine in Colorado and Wyoming, USA . : Blackwell Verlag GmbH.

Gaya MLA

Kearns, H., S., J.. et al. "Risk of white pine blister rust to limber pine in Colorado and Wyoming, USA". : Blackwell Verlag GmbH, 2014. e-journal.