APA

Polhemus J. T., . (1979). Results of the Austrian-Ceylonese Hydrobiological Mission 1970, of the Institute of Zoology of the University of Vienna (Austria) and the Department of Zoology of the University of Sri Lanka,Vidyalankara Campus, Kelaniya Part XIX:Aquatic and Semiaquatic Hemiptera of Sri Lanka from the Austrian Indo-Pacific Expedition, 1 9 7 0 - 7 1. Colombo 15: NARA.

Chicago

Polhemus John T, . 1979. Results of the Austrian-Ceylonese Hydrobiological Mission 1970, of the Institute of Zoology of the University of Vienna (Austria) and the Department of Zoology of the University of Sri Lanka,Vidyalankara Campus, Kelaniya Part XIX:Aquatic and Semiaquatic Hemiptera of Sri Lanka from the Austrian Indo-Pacific Expedition, 1 9 7 0 - 7 1. Colombo 15: NARA.

Harvard

Polhemus J. T., . (1979). Results of the Austrian-Ceylonese Hydrobiological Mission 1970, of the Institute of Zoology of the University of Vienna (Austria) and the Department of Zoology of the University of Sri Lanka,Vidyalankara Campus, Kelaniya Part XIX:Aquatic and Semiaquatic Hemiptera of Sri Lanka from the Austrian Indo-Pacific Expedition, 1 9 7 0 - 7 1. Colombo 15: NARA.

MLA

Polhemus John T, . Results of the Austrian-Ceylonese Hydrobiological Mission 1970, of the Institute of Zoology of the University of Vienna (Austria) and the Department of Zoology of the University of Sri Lanka,Vidyalankara Campus, Kelaniya Part XIX:Aquatic and Semiaquatic Hemiptera of Sri Lanka from the Austrian Indo-Pacific Expedition, 1 9 7 0 - 7 1. Colombo 15: NARA. 1979.