(1969). Biennial Conference, Southwestern Library Association, Papers and Proceedings (22nd, Tulsa, October 16-19, 1968).
Citazione stile Chigago Style (17a edizione)Biennial Conference, Southwestern Library Association, Papers and Proceedings (22nd, Tulsa, October 16-19, 1968). 1969.
Citatione MLA (9a ed.)Biennial Conference, Southwestern Library Association, Papers and Proceedings (22nd, Tulsa, October 16-19, 1968). 1969.
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