APA (7th ed.) Citation

Rookmaaker, K. Early photographs of the greater one-horned rhinoceros (Rhinoceros unicornis) in the wild. IUCN.

Chicago Style (17th ed.) Citation

Rookmaaker, Kees. Early Photographs of the Greater One-horned Rhinoceros (Rhinoceros Unicornis) in the Wild. IUCN.

MLA (9th ed.) Citation

Rookmaaker, Kees. Early Photographs of the Greater One-horned Rhinoceros (Rhinoceros Unicornis) in the Wild. IUCN.

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