Cita APA (7a ed.)

Ball, S. G., & Morris, R. K. A. (2015). Britain's Hoverflies: A Field Guide - Revised and Updated Second Edition (Second edition, fully revised and updated.). Princeton University Press.

Cita Chicago Style (17a ed.)

Ball, S. G., y R. K. A. Morris. Britain's Hoverflies: A Field Guide - Revised and Updated Second Edition. Second edition, fully revised and updated. Princeton, New Jersey: Princeton University Press, 2015.

Cita MLA (8a ed.)

Ball, S. G., y R. K. A. Morris. Britain's Hoverflies: A Field Guide - Revised and Updated Second Edition. Second edition, fully revised and updated. Princeton University Press, 2015.