International Geological Congress,, 28, Abstracts / 28th International Geological Congress

Abstracts / 28th International Geological Congress . - Washington : Geological Congress, 1989 . - 3 v. 28 cm . -
vol.1 : 624 p. : il
vol.2 : 767 p. : il
vol.3 : 536 p. : il.
551.1