Philippine Atomic Energy Commission. Classification and Information Branch. (1971). Chromium isotopes - Cr 51: A literature search. [s.n.].
Chicago Style aipamenaPhilippine Atomic Energy Commission. Classification and Information Branch. Chromium Isotopes - Cr 51: A Literature Search. Manila: [s.n.], 1971.
MLA aipamenaPhilippine Atomic Energy Commission. Classification and Information Branch. Chromium Isotopes - Cr 51: A Literature Search. [s.n.], 1971.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.