Haak, J. R. (1970). Goal determination and the under-graduate library. California University Library, Educational Resources Information Center.
Cita Chicago (17th ed.)Haak, John R. Goal Determination and the Under-graduate Library. San Diego : Washington: California University Library, Educational Resources Information Center, 1970.
Cita MLA (8th ed.)Haak, John R. Goal Determination and the Under-graduate Library. California University Library, Educational Resources Information Center, 1970.
Atenció: Aquestes cites poden no estar 100% correctes.