APA

The Universal Reference System, . (1968). Bibliography of bibliographies in political science, government and public policy. Princeton: Princeton Research Publishing Company.

Chicago

The Universal Reference System, . 1968. Bibliography of bibliographies in political science, government and public policy. Princeton: Princeton Research Publishing Company.

Harvard

The Universal Reference System, . (1968). Bibliography of bibliographies in political science, government and public policy. Princeton: Princeton Research Publishing Company.

MLA

The Universal Reference System, . Bibliography of bibliographies in political science, government and public policy. Princeton: Princeton Research Publishing Company. 1968.