Cita APA (7th ed.)
Cosgrove, F. (1978). Essential of new life. Navpress.
Cita Chicago (17th ed.)
Cosgrove, Francis. Essential of New Life. Collorado: Navpress, 1978.
Cita MLA (9th ed.)
Cosgrove, Francis. Essential of New Life. Navpress, 1978.
Atenció: Aquestes cites poden no estar 100% correctes.