APA-Zitierstil (7. Ausg.)

(1994). Guidelines: Development of national parks and protected areas for tourism (1. ed., 2. print.).

Chicago-Zitierstil (17. Ausg.)

Guidelines: Development of National Parks and Protected Areas for Tourism. 1. ed., 2. print. Madrid, 1994.

MLA-Zitierstil (9. Ausg.)

Guidelines: Development of National Parks and Protected Areas for Tourism. 1. ed., 2. print. 1994.