APA (7 ম সংস্করণ) উদ্ধৃতি

Holmgren, D. (2002). Permaculture: Principles and pathways beyond sustainability. Holmgren design services.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Holmgren, David. Permaculture: Principles and Pathways Beyond Sustainability. Victoria: Holmgren design services, 2002.

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

Holmgren, David. Permaculture: Principles and Pathways Beyond Sustainability. Holmgren design services, 2002.