Gaya APA

1926, H, J, G., Heinke, G, W, 1. (1989). Environmental science and engineering / Glynn Henry, Gery W. Heinke . Englewood Cliffs N.J.: Prentice Hall.

Gaya MLA

1926, Henry, J., Glynn,., Heinke, Gary,, W.,, 1932. "Environmental science and engineering / Glynn Henry, Gery W. Heinke". Englewood Cliffs N.J.: Prentice Hall, 1989. Textbook.