Dyfyniad APA

Robertson, J., & Stevens, K. (2014). Pyrrolizidine alkaloids. Royal Society of Chemistry.

Dyfyniad Arddull Chicago

Robertson, J., and K. Stevens. Pyrrolizidine Alkaloids. Royal Society of Chemistry, 2014.

Dyfyniad MLA

Robertson, J., and K. Stevens. Pyrrolizidine Alkaloids. Royal Society of Chemistry, 2014.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.