Cita APA (7a ed.)

Isler, O., Gutmann, H., & Solms, U. (1971). Carotenoids. Birkhäuser.

Cita Chicago Style (17a ed.)

Isler, Otto, Hugo Gutmann, y Ulrich Solms. Carotenoids. Basel [etc.]: Birkhäuser, 1971.

Cita MLA (9a ed.)

Isler, Otto, et al. Carotenoids. Birkhäuser, 1971.