APA
Martins P., New York City Ballet & Kaplan H. (1997). New York City Ballet workout : fifty stretches and exercises anyone can do for a strong, graceful, and sculpted body. New York, N.Y: W. Morrow.
Chicago
Martins Peter, New York City Ballet and Kaplan Howard. 1997. New York City Ballet workout : fifty stretches and exercises anyone can do for a strong, graceful, and sculpted body. New York, N.Y: W. Morrow.
Harvard
Martins P., New York City Ballet and Kaplan H. (1997). New York City Ballet workout : fifty stretches and exercises anyone can do for a strong, graceful, and sculpted body. New York, N.Y: W. Morrow.
MLA
Martins Peter, New York City Ballet and Kaplan Howard. New York City Ballet workout : fifty stretches and exercises anyone can do for a strong, graceful, and sculpted body. New York, N.Y: W. Morrow. 1997.