Haelle, T. (2018). Vaccination investigation: The history and science of vaccines. Twenty-First Century Books.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHaelle, Tara. Vaccination Investigation: The History and Science of Vaccines. Minneapolis: Twenty-First Century Books, 2018.
एमएलए (8वां संस्करण) प्रशस्ति पत्रHaelle, Tara. Vaccination Investigation: The History and Science of Vaccines. Twenty-First Century Books, 2018.
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