Artificial intelligence and symbolic mathematical computing : сборник научных трудов / Сост.: J. Calmet, J. A. Campbell, 1993. - 305 p. - Текст : непосредственный.
Geology,geochemistry,and uranium favorability of Tertiary Rocks in south-cental Alaska / K. A. Dickinson, K. A. Dickinson, J. A. Campbell, W. F.,Jr Dula, 1995. - A33,B37 p. p. - Текст : непосредственный.
Stanesco J.D. Eolian and noneolian facies of the lower permian cedar mesa sandstone member of the Cultler Formation, Southeastern, Utah. Revisions of middle Jurassic nomenclature in the Southestern San Juan Basic, New Mexico ; S. M. Condon ; J.D.Stanesco,J.A.Campbell, 1989. - 13 p. - Текст : непосредственный.
Campbell J.A. Allgemeine Chemie : Energetik, Dynamik und Struktur chemischer Systeme / J.A.Campbell, 1990. - XXIV,1223 S. S. - Текст : непосредственный.