Chem sources-international–1998 edition. (OCLC #39262429)
This is the thickest book I’ve ever received for cataloging:
300 __ ǂa iv, 2259 pages : ǂb illustrations ; ǂc 29 cm
It made me wonder if RDA had exceptions in the rules for recording Dimensions of a volume related to a book’s thickness (as there are for the cover’s width). There don’t appear to be; it’s probably covered by pagination.