Gaya APA
Walter, John B.. (1977).
An introduction to the principles of disease .
Philadelphia:
W.B. Saunders Company.
Gaya Chicago
Walter, John B..
An introduction to the principles of disease.
Philadelphia:
W.B. Saunders Company,
1977.
Text.
Gaya MLA
Walter, John B..
An introduction to the principles of disease.
Philadelphia:
W.B. Saunders Company,
1977.
Text.
Gaya Turabian
Walter, John B..
An introduction to the principles of disease.
Philadelphia:
W.B. Saunders Company,
1977.
Print.