books.google.com - Johnson, a librarian at the U. of Minnesota and editor of Technicalities; Information Forum for the Library Services Practitioner, has written a lucid text on the basic concepts of this broad subject. Theoretical concepts are included but not stressed as heavily as information and skills. An initia...https://books.google.com/books/about/Fundamentals_of_Collection_Development_M.html?id=9GJ6sCPJdAcC&q=document+delivery&utm_source=gb-gplus-shareFundamentals of Collection Development & Management