Kieft, R. H. (2002). When Reference Works Are Not Books. The New Edition of the "Guide to Reference Books.".
Citazione stile Chigago Style (17a edizione)Kieft, Robert H. When Reference Works Are Not Books. The New Edition of the "Guide to Reference Books.". 2002.
Citatione MLA (9a ed.)Kieft, Robert H. When Reference Works Are Not Books. The New Edition of the "Guide to Reference Books.". 2002.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.