Dyfyniad APA
Keyes, C. G., Jr. (2016). Guidelines for cloud seeding to augment precipitation (Third edition.). American Society of Civil Engineers.
Dyfyniad Arddull Chicago
Keyes, Conrad G., Jr. Guidelines for Cloud Seeding to Augment Precipitation. Third edition. Reston, Virginia: American Society of Civil Engineers, 2016.
Dyfyniad MLA
Keyes, Conrad G., Jr. Guidelines for Cloud Seeding to Augment Precipitation. Third edition. American Society of Civil Engineers, 2016.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.