Παραπομπή σε μορφή APA (7η εκδ.)

Viljoen, A., & Wiskerke, J. S. C. (2012). Sustainable food planning: Evolving theory and practice. Wageningen Academic Publishers.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Viljoen, Andre, και Johannes S. C. Wiskerke. Sustainable Food Planning: Evolving Theory and Practice. Wageningen, Netherlands: Wageningen Academic Publishers, 2012.

Παραπομπή σε μορφή MLA (9th εκδ.)

Viljoen, Andre, και Johannes S. C. Wiskerke. Sustainable Food Planning: Evolving Theory and Practice. Wageningen Academic Publishers, 2012.