Dyfyniad APA
Collins, G. R. (1992). You can make a difference: 14 principles for influencing lives. Zondervan.
Dyfyniad Arddull Chicago
Collins, Gary R. You Can Make a Difference: 14 Principles for Influencing Lives. Grand Rapids, Mich.: Zondervan, 1992.
Dyfyniad MLA
Collins, Gary R. You Can Make a Difference: 14 Principles for Influencing Lives. Zondervan, 1992.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.