Sierra Club, Pyramid Productions (Firm), Spacek, S., Serrill, W., Hedreen, A., & Thompson, R. (2003). Wild America: Protecting the lands explored by Lewis & Clark. Pyramid Productions ; Sierra Club.
Chicago Style (17th ed.) CitationSierra Club, Pyramid Productions (Firm), Sissy Spacek, Ward Serrill, Ann Hedreen, and Rustin Thompson. Wild America: Protecting the Lands Explored by Lewis & Clark. [S.l.]: Pyramid Productions ; Sierra Club, 2003.
MLA (8th ed.) CitationSierra Club, et al. Wild America: Protecting the Lands Explored by Lewis & Clark. Pyramid Productions ; Sierra Club, 2003.
Warning: These citations may not always be 100% accurate.