Não informado. (1970). Geodex Retrieval System for Geotechnical Abstracts. Geodex International.
Chicago Style (17th ed.) CitationNão informado. Geodex Retrieval System for Geotechnical Abstracts. Sonoma, Calif: Geodex International, 1970.
MLA (8th ed.) CitationNão informado. Geodex Retrieval System for Geotechnical Abstracts. Geodex International, 1970.
Warning: These citations may not always be 100% accurate.