APA-Zitierstil (7. Ausg.)

(1992). Guidelines: Development of national parks and protected areas for tourism (1. ed.).

Chicago-Zitierstil (17. Ausg.)

Guidelines: Development of National Parks and Protected Areas for Tourism. 1. ed. Madrid, 1992.

MLA-Zitierstil (9. Ausg.)

Guidelines: Development of National Parks and Protected Areas for Tourism. 1. ed. 1992.