Dyfyniad APA

PARKER, S. P. (1988). Mcgraw-hill Encyclopedia Of Environmental Science & Engineering Editors In Chief, Sybil P. Parker, Robert A. Corbitt. McGraw-Hill.

Dyfyniad Arddull Chicago

PARKER, Sybil P. Mcgraw-hill Encyclopedia Of Environmental Science & Engineering Editors In Chief, Sybil P. Parker, Robert A. Corbitt. McGraw-Hill, 1988.

Dyfyniad MLA

PARKER, Sybil P. Mcgraw-hill Encyclopedia Of Environmental Science & Engineering Editors In Chief, Sybil P. Parker, Robert A. Corbitt. McGraw-Hill, 1988.

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