institutul de geologie si geofizica (16)
british geological survey (7)
comitetul de stat al geologiei institutul geologic (3)
cnr (2)
geological society of america (2)
geological survey of bangladesh (2)
geological survey of pakistan (2)
bureau of mineral resources geology and geophysics department of national development (1)
di zhi chu ban she :; xin hua shu dian beijing fa xing suo fa xing (1)
direction generale des ressources naturelles et de l'environnement (1)

republica socialista romania, harta geologica : scara 1:50.000 (16)
geological survey of northern ireland (6)
gravity field of the northwest pacific ocean basin and its margin: philippine sea (2)
republica socialista romania, harta geologica : scara 1:200.000 (2)
105 d retezat ( l-34 94- d) (1)
128 d pucioasa ( l 35- 99- d) (1)
134 a macin ( l-35 - 105- a) (1)
134 c peceneaga ( l 35- 105- c) (1)
134 d priopcea (l 35- 105- d) (1)
135 a somova (l 35- 105- a) (1)