Primack, R. B. (2014). Essentials of conservation biology (Sixth edition.). Sinauer Associates, Inc., Publishers.
Dyfyniad Arddull ChicagoPrimack, Richard B. Essentials of Conservation Biology. Sixth edition. Sunderland, Massachusetts: Sinauer Associates, Inc., Publishers, 2014.
Dyfyniad MLAPrimack, Richard B. Essentials of Conservation Biology. Sixth edition. Sinauer Associates, Inc., Publishers, 2014.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.