APA

Straka G. M., Straka L. O., . (1973). A certainty in the succession. New York: Alfred A. Knoff.

Chicago

Straka Gerald M, Straka Lois O, . 1973. A certainty in the succession. New York: Alfred A. Knoff.

Harvard

Straka G. M., Straka L. O., . (1973). A certainty in the succession. New York: Alfred A. Knoff.

MLA

Straka Gerald M, Straka Lois O, . A certainty in the succession. New York: Alfred A. Knoff. 1973.