Dyfyniad APA

Hennekens, C., Speizer, F., Rosner, B., Bain, C., Belanger, C., & Peto, R. (1979). Use of permanent hair dyes and cancer among registered nurses.

Dyfyniad Arddull Chicago

Hennekens, C., F. Speizer, B. Rosner, C. Bain, C. Belanger, and R. Peto. Use of Permanent Hair Dyes and Cancer Among Registered Nurses. 1979.

Dyfyniad MLA

Hennekens, C., et al. Use of Permanent Hair Dyes and Cancer Among Registered Nurses. 1979.

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