Dyfyniad APA

Webster, R., & Lark, M. (2013). Field sampling for environmental science and management. Routledge.

Dyfyniad Arddull Chicago

Webster, Richard, and Murray Lark. Field Sampling for Environmental Science and Management. Oxon: Routledge, 2013.

Dyfyniad MLA

Webster, Richard, and Murray Lark. Field Sampling for Environmental Science and Management. Routledge, 2013.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.