Dyfyniad APA

Heather, N. W., & Hallman, G. J. (2014). Pest Management and Phytosanitary Trade Barriers. CABI.

Dyfyniad Arddull Chicago

Heather, Neil W., và Guy J. Hallman. Pest Management and Phytosanitary Trade Barriers. CABI, 2014.

Dyfyniad MLA

Heather, Neil W., và Guy J. Hallman. Pest Management and Phytosanitary Trade Barriers. CABI, 2014.

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