APA Style

Cunningham, M, A., Cunningham, W, P. (2009). Principles of Environmental Science Inquiry and Applications Fifth Edition (Pertama). New York: McGRAW-HILL BOOK COMPANY, Inc.

MLA Style

Cunningham, Mary, Ann., Cunningham, William, P.. "Principles of Environmental Science Inquiry and Applications Fifth Edition". Pertama New York: McGRAW-HILL BOOK COMPANY, Inc, 2009. Text.