NSS Cavern Diving Manual.
first edition Paperback
1988 · Branford:
by ZUMRICK, Jr., John L., et al.
Branford:: National Speleological Society,. Near Fine. 1988. Paperback. B000KSDHOS . First edition, first printing (paperback). Previous owner's initials on inside covers, title page, and rear endpage, else near fine in illustrated wraps. ; 121 pages . (Inventory #: 88161)