Haak, J. R. (1970). Goal determination and the under-graduate library. California University Library, Educational Resources Information Center.
Citazione stile Chigago Style (17a edizione)Haak, John R. Goal Determination and the Under-graduate Library. San Diego : Washington: California University Library, Educational Resources Information Center, 1970.
Citatione MLA (8a ed.)Haak, John R. Goal Determination and the Under-graduate Library. California University Library, Educational Resources Information Center, 1970.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.