APA

Spence J. R., Moller Andersen N., .Biology of water striders. : .

Chicago

Spence John R, Moller Andersen Nils, .Biology of water striders. : .

Harvard

Spence J. R., Moller Andersen N., .Biology of water striders. : .

MLA

Spence John R, Moller Andersen Nils, .: . .