Dyfyniad APA

Gregoire, T. G., & Valentine, H. T. (2008). Sampling strategies for natural resources and the environment. Chapman & Hall.

Dyfyniad Arddull Chicago

Gregoire, Timothy G., and Harry T. Valentine. Sampling Strategies for Natural Resources and the Environment. London: Chapman & Hall, 2008.

Dyfyniad MLA

Gregoire, Timothy G., and Harry T. Valentine. Sampling Strategies for Natural Resources and the Environment. Chapman & Hall, 2008.

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