APA-viite (7. p.)

ebrary, Inc, Sroufe, R. P., & Sarkis, J. (2007). Strategic sustainability: The state of the art in corporate environmental management systems. Greenleaf Pub..

Chicago-viite (17. p.)

ebrary, Inc, Robert Paul Sroufe, ja Joseph Sarkis. Strategic Sustainability: The State of the Art in Corporate Environmental Management Systems. Sheffield, U.K.: Greenleaf Pub., 2007.

MLA-viite (9. p.)

ebrary, Inc, et al. Strategic Sustainability: The State of the Art in Corporate Environmental Management Systems. Greenleaf Pub., 2007.