APA
Finch George A,, . (1948). The sources of modern international law. Cuba: La Habana.
Chicago
Finch George A,, . 1948. The sources of modern international law. Cuba: La Habana.
Harvard
Finch George A,, . (1948). The sources of modern international law. Cuba: La Habana.
MLA
Finch George A,, . The sources of modern international law. Cuba: La Habana. 1948.