Dyfyniad APA
L'hirondel, J., & L'hirondel, J. (2002). Nitrate and man: Toxic, harmless or beneficial? CABI.
Dyfyniad Arddull Chicago
L'hirondel, Jean, and Jean-Louis L'hirondel. Nitrate and Man: Toxic, Harmless or Beneficial? Wallingford: CABI, 2002.
Dyfyniad MLA
L'hirondel, Jean, and Jean-Louis L'hirondel. Nitrate and Man: Toxic, Harmless or Beneficial? CABI, 2002.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.