Style de citation APA (7e éd.)

Hopper, L. J. (2011). Graphic standards field guide to softscape. Wiley.

Style de citation Chicago (17e éd.)

Hopper, Leonard J. Graphic Standards Field Guide to Softscape. Hoboken, N.J: Wiley, 2011.

Style de citation MLA (9e éd.)

Hopper, Leonard J. Graphic Standards Field Guide to Softscape. Wiley, 2011.