Andrew Watterson. (1988). Pesticide user's health and safety handbook. Cambridge: Cambridge Univ. Press.
Dyfyniad Arddull ChicagoAndrew Watterson. Pesticide User's Health and Safety Handbook. Cambridge: Cambridge Univ. Press, 1988.
Dyfyniad MLAAndrew Watterson. Pesticide User's Health and Safety Handbook. Cambridge: Cambridge Univ. Press, 1988.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.