Παραπομπή σε μορφή APA (7η εκδ.)

Negi, J. (1990). Tourism development and resource conservation: An environmental, ecological, socio-economic and cultural approach to tourism in developing countries. Metropolitan.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Negi, Jagmohan. Tourism Development and Resource Conservation: An Environmental, Ecological, Socio-economic and Cultural Approach to Tourism in Developing Countries. New Delhi: Metropolitan, 1990.

Παραπομπή σε μορφή MLA (9th εκδ.)

Negi, Jagmohan. Tourism Development and Resource Conservation: An Environmental, Ecological, Socio-economic and Cultural Approach to Tourism in Developing Countries. Metropolitan, 1990.