Cita APA (7th ed.)

Scheinberger, F., Gibson, F. A., & Aehle, N. (2014). Urban watercolor sketching: A fearless guide to drawing, painting, and dreaming in color (First English edition.). Page One Publishing Pte Ltd.

Cita Chicago (17th ed.)

Scheinberger, Felix, Faith Ann Gibson, i Nikola Aehle. Urban Watercolor Sketching: A Fearless Guide to Drawing, Painting, and Dreaming in Color. First English edition. Singapore: Page One Publishing Pte Ltd, 2014.

Cita MLA (9th ed.)

Scheinberger, Felix, et al. Urban Watercolor Sketching: A Fearless Guide to Drawing, Painting, and Dreaming in Color. First English edition. Page One Publishing Pte Ltd, 2014.