Phillips, J. (1991). Physical geology and palaeontology: Theoretical and practical. Aksoshdeep.
Dyfyniad Arddull ChicagoPhillips, John. Physical Geology and Palaeontology: Theoretical and Practical. New Delhi: Aksoshdeep, 1991.
Dyfyniad MLAPhillips, John. Physical Geology and Palaeontology: Theoretical and Practical. Aksoshdeep, 1991.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.