APA
Kopal Z., . (1978). Dynamics of close binary systems. Boston: D. Reidel.
Chicago
Kopal Zdenek, . 1978. Dynamics of close binary systems. Boston: D. Reidel.
Harvard
Kopal Z., . (1978). Dynamics of close binary systems. Boston: D. Reidel.
MLA
Kopal Zdenek, . Dynamics of close binary systems. Boston: D. Reidel. 1978.