Dyfyniad APA

WHO. (1991). Environmental health criteria; N.109: Summary report on the evaluation of short-term test for carcinogens ( collaborative study on in vivo tests ). Geneva: WHO.

Dyfyniad Arddull Chicago

WHO. Environmental Health Criteria; N.109: Summary Report On the Evaluation of Short-term Test for Carcinogens ( Collaborative Study On in Vivo Tests ). Geneva: WHO, 1991.

Dyfyniad MLA

WHO. Environmental Health Criteria; N.109: Summary Report On the Evaluation of Short-term Test for Carcinogens ( Collaborative Study On in Vivo Tests ). Geneva: WHO, 1991.

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