APA
(1991). Program report for 1990. Los Banos, Laguna: International Rice Research Institute.
Chicago
1991. Program report for 1990. Los Banos, Laguna: International Rice Research Institute.
Harvard
(1991). Program report for 1990. Los Banos, Laguna: International Rice Research Institute.
MLA
Program report for 1990. Los Banos, Laguna: International Rice Research Institute. 1991.