Dyfyniad APA
Ryser, S., & Weber, M. (1991). Genetic engineering. What's happening at Roche? (1a. ed.). Editiones Roche.
Dyfyniad Arddull Chicago
Ryser, Stefan, and Marcel Weber. Genetic Engineering. What's Happening at Roche? 1a. ed. Basilea: Editiones Roche, 1991.
Dyfyniad MLA
Ryser, Stefan, and Marcel Weber. Genetic Engineering. What's Happening at Roche? 1a. ed. Editiones Roche, 1991.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.