Citazione Stile APA (7a Edizione)

Urquhart, P. (1999). IPM and the citrus industry in South Africa. International Institute for Environment and Development.

Citazione stile Chigago Style (17a edizione)

Urquhart, Penny. IPM and the Citrus Industry in South Africa. London: International Institute for Environment and Development, 1999.

Citatione MLA (9a ed.)

Urquhart, Penny. IPM and the Citrus Industry in South Africa. International Institute for Environment and Development, 1999.

Attenzione: Queste citazioni potrebbero non essere precise al 100%.