Παραπομπή σε μορφή APA (7η εκδ.)

(2019). The Holistic Approach to Environment. Association for Promotion of Holistic Approach to Environment.

Παραπομπή σε μορφή Chicago (17η εκδ.)

The Holistic Approach to Environment. Association for Promotion of Holistic Approach to Environment, 2019.

Παραπομπή σε μορφή MLA (8th εκδ.)

The Holistic Approach to Environment. Association for Promotion of Holistic Approach to Environment, 2019.