APA
Abshire D. M., Samuels M. A., . (1969). Portuguese Africa: a handbook. New York [etc.]: Published in cooperation with the Center for Strategic and International Studies, Georgetown University by Praeger Publ.
Chicago
Abshire David M, Samuels Michael A, . 1969. Portuguese Africa: a handbook. New York [etc.]: Published in cooperation with the Center for Strategic and International Studies, Georgetown University by Praeger Publ.
Harvard
Abshire D. M., Samuels M. A., . (1969). Portuguese Africa: a handbook. New York [etc.]: Published in cooperation with the Center for Strategic and International Studies, Georgetown University by Praeger Publ.
MLA
Abshire David M, Samuels Michael A, . Portuguese Africa: a handbook. New York [etc.]: Published in cooperation with the Center for Strategic and International Studies, Georgetown University by Praeger Publ. 1969.