Sheppard, R. (1998). International directory of book collectors: 1998-99 ; a directory of book collectors in the United Kingdom, Ireland, United States, Canada and the rest of the world (6th ed.). Trigon.
Chicago Style (17th ed.) CitationSheppard, Roger. International Directory of Book Collectors: 1998-99 ; a Directory of Book Collectors in the United Kingdom, Ireland, United States, Canada and the Rest of the World. 6th ed. Beckenham: Trigon, 1998.
MLA (9th ed.) CitationSheppard, Roger. International Directory of Book Collectors: 1998-99 ; a Directory of Book Collectors in the United Kingdom, Ireland, United States, Canada and the Rest of the World. 6th ed. Trigon, 1998.
Warning: These citations may not always be 100% accurate.