Παραπομπή σε μορφή APA (7η εκδ.)

National Weeds Conference of South Africa (3rd: 1979 : Pretoria) )., Cairns, & Neser. (1980). Proceedings of the third National Weeds Conference of South Africa. Balkema.

Παραπομπή σε μορφή Chicago (17η εκδ.)

National Weeds Conference of South Africa (3rd: 1979 : Pretoria) )., Cairns, και Neser. Proceedings of the Third National Weeds Conference of South Africa. Cape Town: Balkema, 1980.

Παραπομπή σε μορφή MLA (9th εκδ.)

National Weeds Conference of South Africa (3rd: 1979 : Pretoria) )., et al. Proceedings of the Third National Weeds Conference of South Africa. Balkema, 1980.