Grumley, M. C., & Brick, S. (2019). Breakthrough: Breakthrough series, book 1 (Unabridged.). Recorded Books Inc..
Cita Chicago Style (17a ed.)Grumley, Michael C., y Scott Brick. Breakthrough: Breakthrough Series, Book 1. Unabridged. Prince Frederick: Recorded Books Inc., 2019.
Cita MLA (8a ed.)Grumley, Michael C., y Scott Brick. Breakthrough: Breakthrough Series, Book 1. Unabridged. Recorded Books Inc., 2019.
Precaución: Estas citas no son 100% exactas.