Alonso, Marcelo, 1921-, author
Massachusetts Addison-Wesley , 1968
Buku Teks
edited by Frank N. Magill
Fitzroy Dearborn, 1996
Buku Referensi
edited by E. David Cronon
Dorsey Press, 1966
Buku Teks
edited by Frank N. Magill
Fitzroy Dearborn, 1996
Buku Referensi
Cornwell, J.F., author
Academic Press, 1989
Buku Teks