APA

Drake C. J., Harris H. M. & Iowa A.III. The Gerrinae of the western hemisphere (Hemiptera). : .

Chicago

Drake C J, Harris H M and Iowa Ames.III. The Gerrinae of the western hemisphere (Hemiptera). : .

Harvard

Drake C. J., Harris H. M. and Iowa A.III. The Gerrinae of the western hemisphere (Hemiptera). : .

MLA

Drake C J, Harris H M and Iowa Ames.: . .