APA Format
Kaplan, Irving; Kaplan, Irving. (1979).
Angola : a country study : etited by Irving Kaplan
. Washington :: Department of Army,.
MLA Format
Kaplan, Irving; Kaplan, Irving.
Angola : a country study : etited by Irving Kaplan
. Washington :: Department of Army,, 1979
Chicago Format
Kaplan, Irving; Kaplan, Irving. Angola : a country study : etited by Irving Kaplan. Washington :: Department of Army,, 1979.