University College and Professional Publishers Council & Council of Academic & Professional Publishers. University and polytechnic libraries : book and journal spending: Book and journal spending. Publishers Association.
Chicago Style (17th ed.) CitationUniversity College and Professional Publishers Council and Council of Academic & Professional Publishers. University and Polytechnic Libraries : Book and Journal Spending: Book and Journal Spending. London: Publishers Association.
MLA (9th ed.) CitationUniversity College and Professional Publishers Council and Council of Academic & Professional Publishers. University and Polytechnic Libraries : Book and Journal Spending: Book and Journal Spending. Publishers Association.
Warning: These citations may not always be 100% accurate.