APA (7e ed.) Bronvermelding

Singh,Soubam Prenchandra. (2018). Eco.tourism environmental problems & sustainable development. Discovery publishing House.

Chicago (17e ed.) Bronvermelding

Singh,Soubam Prenchandra. Eco.tourism Environmental Problems & Sustainable Development. New Delhi: Discovery publishing House, 2018.

MLA (9e ed.) Bronvermelding

Singh,Soubam Prenchandra. Eco.tourism Environmental Problems & Sustainable Development. Discovery publishing House, 2018.

Let op: Deze citaties zijn niet altijd 100% accuraat.