APA

Ball G. E., Danks H. V., .Systematics and entomology: introduction. : .

Chicago

Ball George E, Danks H V, .Systematics and entomology: introduction. : .

Harvard

Ball G. E., Danks H. V., .Systematics and entomology: introduction. : .

MLA

Ball George E, Danks H V, .: . .