Gaya APA
DeVita, V, T., Hellman, S.
(1989).
Important Advances in Oncology 1989
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Philadelphia:
J.B. Lippincott.
Gaya MLA
DeVita, Vincent, T., Hellman, Samuel.
"Important Advances in Oncology 1989".
Philadelphia:
J.B. Lippincott,
1989.
print.