APA Style

SILVIUS, M, J. (1990). Three years of wetland and waterbird conservation activities in Indonesia: October 1987-September 1990 . : PHPA-AWP.

MLA Style

SILVIUS, Marcel, J.. "Three years of wetland and waterbird conservation activities in Indonesia: October 1987-September 1990". : PHPA-AWP, 1990. Electronic resources.