Bloom, D. F., & Karp, J. D. C. (1998). Ph.D. Process; a student guide to graduate school in the sciences. Oxford University.
Dyfyniad Arddull ChicagoBloom, Dale F., and Jonathan D. Cohen Karp. Ph.D. Process; a Student Guide to Graduate School in the Sciences. New York: Oxford University, 1998.
Dyfyniad MLABloom, Dale F., and Jonathan D. Cohen Karp. Ph.D. Process; a Student Guide to Graduate School in the Sciences. Oxford University, 1998.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.