APA (7e ed.) Bronvermelding

Buttress, F. . . . . . . . . . . . . . . A. (1974). World guide to abbreviations of organizations (5th ed.). Leonard Hill Books.

Chicago (17e ed.) Bronvermelding

Buttress, F A. World Guide to Abbreviations of Organizations. 5th ed. Leighton Buzzard: Leonard Hill Books, 1974.

MLA (9e ed.) Bronvermelding

Buttress, F A. World Guide to Abbreviations of Organizations. 5th ed. Leonard Hill Books, 1974.