Gopalakrishnan, K. (1973). Developmental and growth studies of the Euphausid Nematoscelis difficilis (Crustacea): Based on rearing. University of California Press.

Gopalakrishnan, K. Developmental and Growth Studies of the Euphausid Nematoscelis Difficilis (Crustacea): Based on Rearing. Berkeley: University of California Press, 1973.

Gopalakrishnan, K. Developmental and Growth Studies of the Euphausid Nematoscelis Difficilis (Crustacea): Based on Rearing. University of California Press, 1973.