Summerhill, K. S. (1994). The High Cost of Reference: The Need to Reassess Services and Service Delivery.
Style de citation Chicago (17e éd.)Summerhill, Karen Storin. The High Cost of Reference: The Need to Reassess Services and Service Delivery. 1994.
Style de citation MLA (9e éd.)Summerhill, Karen Storin. The High Cost of Reference: The Need to Reassess Services and Service Delivery. 1994.
Attention : ces citations peuvent ne pas être correctes à 100%.