Gaya APA

Tu, M. et al (2001). Weed Control Methods Handbook: Tools and Techniques for Use in Natural Areas . New York: TNC’s Wildland Invasive Species Team.

Gaya MLA

Tu, Mandy. et al. "Weed Control Methods Handbook: Tools and Techniques for Use in Natural Areas". New York: TNC’s Wildland Invasive Species Team, 2001. e-book.