Cita APA (7a ed.)
Ryser, S., & Weber, M. (1991). Genetic engineering. What's happening at Roche? (1a. ed.). Editiones Roche.
Cita Chicago Style (17a ed.)
Ryser, Stefan, y Marcel Weber. Genetic Engineering. What's Happening at Roche? 1a. ed. Basilea: Editiones Roche, 1991.
Cita MLA (9a ed.)
Ryser, Stefan, y Marcel Weber. Genetic Engineering. What's Happening at Roche? 1a. ed. Editiones Roche, 1991.
Precaución: Estas citas no son 100% exactas.