Citazione Stile APA (7a Edizione)

Wellman, S. (1995). David Livingstone from Africa to eternity. Barbour Publishing.

Citazione stile Chigago Style (17a edizione)

Wellman, Sam. David Livingstone from Africa to Eternity. Uhrichsville, OH: Barbour Publishing, 1995.

Citatione MLA (9a ed.)

Wellman, Sam. David Livingstone from Africa to Eternity. Barbour Publishing, 1995.