Dyfyniad APA
Engstrom, T. W. (1981). The most important thing a man needs to know about the rest of his life. Fleming H. Revell.
Dyfyniad Arddull Chicago
Engstrom, Ted W. The Most Important Thing a Man Needs to Know About the Rest of His Life. New Jersey: Fleming H. Revell, 1981.
Dyfyniad MLA
Engstrom, Ted W. The Most Important Thing a Man Needs to Know About the Rest of His Life. Fleming H. Revell, 1981.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.