APA (7th ed.) Zitazioa

Semal, J. (1986). Somaclonal variations and crop environment. Martinus Nijhoff.

Chicago Style (17th ed.) Zitazioa

Semal, Jean. Somaclonal Variations and Crop Environment. Dordrecht: Martinus Nijhoff, 1986.

MLA (9th ed.) Zitazioa

Semal, Jean. Somaclonal Variations and Crop Environment. Martinus Nijhoff, 1986.