APA استشهاد

Harrad, S. (2008). Student projects in environmental science. John Wiley.

استشهاد بنمط شيكاغو

Harrad, Stuart. Student Projects in Environmental Science. Chichester, England ; Hoboken, NJ: John Wiley, 2008.

MLA استشهاد

Harrad, Stuart. Student Projects in Environmental Science. John Wiley, 2008.