APA
Leatherwood Stephen, . (1989). Marine Mammal Research and Conservation in Sri Lanka 1985-1986 Marine Mammal Technical Report No.1. NAIROBI: UNEP.
Chicago
Leatherwood Stephen, . 1989. Marine Mammal Research and Conservation in Sri Lanka 1985-1986 Marine Mammal Technical Report No.1. NAIROBI: UNEP.
Harvard
Leatherwood Stephen, . (1989). Marine Mammal Research and Conservation in Sri Lanka 1985-1986 Marine Mammal Technical Report No.1. NAIROBI: UNEP.
MLA
Leatherwood Stephen, . Marine Mammal Research and Conservation in Sri Lanka 1985-1986 Marine Mammal Technical Report No.1. NAIROBI: UNEP. 1989.