APA (7th ed.) Citation

(1989). The alps: A system under pressure. IUCN - The World Conservation Union.

Chicago Style (17th ed.) Citation

The Alps: A System Under Pressure. s.l.: IUCN - The World Conservation Union, 1989.

MLA (9th ed.) Citation

The Alps: A System Under Pressure. IUCN - The World Conservation Union, 1989.

Warning: These citations may not always be 100% accurate.