(2002). Cancer Institute ng PGH. Kabayan.
Chicago Style (17. basım) Atıf"Cancer Institute Ng PGH." Kabayan 2002.
MLA (9th ed.) Atıf"Cancer Institute Ng PGH." Kabayan, 2002.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..
(2002). Cancer Institute ng PGH. Kabayan.
Chicago Style (17. basım) Atıf"Cancer Institute Ng PGH." Kabayan 2002.
MLA (9th ed.) Atıf"Cancer Institute Ng PGH." Kabayan, 2002.