Oke, J., & Heller, J. (2003). Once upon a summer: Seasons of the heart (oke) series, book 1 (Unabridged.). Recorded Books Inc..
Cita Chicago Style (17a ed.)Oke, Janette, y Johnny Heller. Once upon a Summer: Seasons of the Heart (oke) Series, Book 1. Unabridged. Prince Frederick: Recorded Books Inc., 2003.
Cita MLA (8a ed.)Oke, Janette, y Johnny Heller. Once upon a Summer: Seasons of the Heart (oke) Series, Book 1. Unabridged. Recorded Books Inc., 2003.
Precaución: Estas citas no son 100% exactas.