Birot, P., & Title : Le Cycle d' Erosion Sous Les Differents Climats. (1968). The cycle of erosion in different climates. University of Calif. Press.
Dyfyniad Arddull ChicagoBirot, Pierre, and Title : Le Cycle d' Erosion Sous Les Differents Climats. The Cycle of Erosion in Different Climates. Berkeley, CA: University of Calif. Press, 1968.
Dyfyniad MLABirot, Pierre, and Title : Le Cycle d' Erosion Sous Les Differents Climats. The Cycle of Erosion in Different Climates. University of Calif. Press, 1968.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.