Portlock, J. E. (1852). A rudimentary treatise on geology: For the use of beginners (2nd ed.). John Weale.
MLA CitationPortlock, Joseph Ellison. A Rudimentary Treatise on Geology: For the Use of Beginners. 2nd ed. John Weale, 1852.
Warning: These citations have been automatically generated and may not always be 100% accurate..