Dyfyniad APA

Koren,Herman, & Bisesi, M. (1999). Handbook of environmental health ad safety: Principles and practices. Jaico publishing house.

Dyfyniad Arddull Chicago

Koren,Herman, and Michael Bisesi. Handbook of Environmental Health Ad Safety: Principles and Practices. India: Jaico publishing house, 1999.

Dyfyniad MLA

Koren,Herman, and Michael Bisesi. Handbook of Environmental Health Ad Safety: Principles and Practices. Jaico publishing house, 1999.

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