Dyfyniad APA

Haynes, R. M. (1982). Environmental science methods. Chapman and Hall.

Dyfyniad Arddull Chicago

Haynes, Robin M. Environmental Science Methods. London ; New York: Chapman and Hall, 1982.

Dyfyniad MLA

Haynes, Robin M. Environmental Science Methods. Chapman and Hall, 1982.

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