Dyfyniad APA

Lind, l., & Krabill, W. (1964). Tobbacco and you life. Herald Press.

Dyfyniad Arddull Chicago

Lind, loren, and Willard Krabill. Tobbacco and You Life. Herald Press, 1964.

Dyfyniad MLA

Lind, loren, and Willard Krabill. Tobbacco and You Life. Herald Press, 1964.

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