APA (7th ed.) Citation

Martin, E., & Vigne, L. Trade in rhino horn from eastern Africa to Yemen. IUCN.

Chicago Style (17th ed.) Citation

Martin, E.B, and L. Vigne. Trade in Rhino Horn from Eastern Africa to Yemen. IUCN.

MLA (9th ed.) Citation

Martin, E.B, and L. Vigne. Trade in Rhino Horn from Eastern Africa to Yemen. IUCN.

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