Dyfyniad APA

Weldon, J., & Levitt, Z. (1977). Is there life after death. Harvest House.

Dyfyniad Arddull Chicago

Weldon, John, and Zola Levitt. Is There Life After Death. California: Harvest House, 1977.

Dyfyniad MLA

Weldon, John, and Zola Levitt. Is There Life After Death. Harvest House, 1977.

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