Παραπομπή σε μορφή APA (7η εκδ.)

Caligan, K. F. M. A., & Villajuan, J. D. V. Green spaces and health in the city: Urban green spaces network planning for a healthful urban environment.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Caligan, Krista Faye Marian A., και Jose Dan V. Villajuan. Green Spaces and Health in the City: Urban Green Spaces Network Planning for a Healthful Urban Environment.

Παραπομπή σε μορφή MLA (9th εκδ.)

Caligan, Krista Faye Marian A., και Jose Dan V. Villajuan. Green Spaces and Health in the City: Urban Green Spaces Network Planning for a Healthful Urban Environment.