Philippine Atomic Energy Commission. Classification and Information Branch. (1970). Plutonium isotopes 239: A literature search. s.n.].
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPhilippine Atomic Energy Commission. Classification and Information Branch. Plutonium Isotopes 239: A Literature Search. [Quezon City: s.n.], 1970.
एमएलए (9वां संस्करण) प्रशस्ति पत्रPhilippine Atomic Energy Commission. Classification and Information Branch. Plutonium Isotopes 239: A Literature Search. s.n.], 1970.
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