APA
Gopalakrishnakone P., Tan C. K., . (1991). 10th World Congress on Animal, Plant and Microbial Toxins 3-8 November 1991. : .
Chicago
Gopalakrishnakone P, Tan C K, . 1991. 10th World Congress on Animal, Plant and Microbial Toxins 3-8 November 1991. : .
Harvard
Gopalakrishnakone P., Tan C. K., . (1991). 10th World Congress on Animal, Plant and Microbial Toxins 3-8 November 1991. : .
MLA
Gopalakrishnakone P, Tan C K, . 10th World Congress on Animal, Plant and Microbial Toxins 3-8 November 1991. : . 1991.