Encyclopedia of microbiology; Volume 1
Joshua Lederberg, editor-in-chief
Academic Press, 1992
 Buku Referensi
Encyclopedia of microbiology; Volume 2
Lederberg, Joshua, editor-in-chief
Academic Press, 1992
 Buku Referensi
Encyclopedia of microbiology; Volume 4
Lederberg, Joshua, editor-in-chief
Academic Press, 1992
 Buku Referensi
Encyclopedia of knowledge : volume 3
Grolier Incorporated, 1991
 Buku Referensi
The Encyclopedia Americana : volume 3
Grolier, 1994
 Buku Referensi