$40.00 - T&R Bulletin 4-13: Indexed Abstracts of Marine Computer Programs (1970) - list price
$20.00 - T&R Bulletin 4-13: Indexed Abstracts of Marine Computer Programs (1970) - member price
$20.00 - T&R Bulletin 4-13: Indexed Abstracts of Marine Computer Programs (1970) - student member price