Não informado. (1973). Reference Services Review. Pierian Press Publication.
Style de citation Chicago (17e éd.)Não informado. Reference Services Review. Ann Arbor, Mich: Pierian Press Publication, 1973.
Style de citation MLA (8e éd.)Não informado. Reference Services Review. Pierian Press Publication, 1973.
Attention : ces citations peuvent ne pas être correctes à 100%.