Butler, J. (1987). Collection Building vs. Document Delivery: An Evaluation of Methods To Provide NTIS Documents in an Academic Engineering Library.
Chicago-Zitierstil (17. Ausg.)Butler, John. Collection Building Vs. Document Delivery: An Evaluation of Methods To Provide NTIS Documents in an Academic Engineering Library. 1987.
MLA-Zitierstil (9. Ausg.)Butler, John. Collection Building Vs. Document Delivery: An Evaluation of Methods To Provide NTIS Documents in an Academic Engineering Library. 1987.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.