Dyfyniad APA

Schulze, E. D., & ...[et al.]. (1989). Forest decline and air pollution. Springer.

Dyfyniad Arddull Chicago

Schulze, E. D., and ...[et al.]. Forest Decline and Air Pollution. London: Springer, 1989.

Dyfyniad MLA

Schulze, E. D., and ...[et al.]. Forest Decline and Air Pollution. Springer, 1989.

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