Não informado. (1973). International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts. Pergamon Press.
Chicago-viite (17. p.)Não informado. International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts. Oxford, Inglaterra: Pergamon Press, 1973.
MLA-viite (8. p.)Não informado. International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts. Pergamon Press, 1973.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.