Cita APA (7a ed.)

Friedl, F. isan design: Variety rules, the poetry of the unseen.

Cita Chicago Style (17a ed.)

Friedl, Friedrich. Isan Design: Variety Rules, the Poetry of the Unseen.

Cita MLA (9a ed.)

Friedl, Friedrich. Isan Design: Variety Rules, the Poetry of the Unseen.