APA

Bachmann A. O., .Geographic distribution of the Gerridae in Argentina (Insecta, Heteroptera). : .

Chicago

Bachmann Axel O, .Geographic distribution of the Gerridae in Argentina (Insecta, Heteroptera). : .

Harvard

Bachmann A. O., .Geographic distribution of the Gerridae in Argentina (Insecta, Heteroptera). : .

MLA

Bachmann Axel O, .: . .