Heinrich, J. (2002). Childhood vaccines: Challenges in preventing future shortages. U.S. General Accounting Office.
Chicago Style (17th ed.) CitationHeinrich, Janet. Childhood Vaccines: Challenges in Preventing Future Shortages. [Washington, D.C.]: U.S. General Accounting Office, 2002.
MLA (9th ed.) CitationHeinrich, Janet. Childhood Vaccines: Challenges in Preventing Future Shortages. U.S. General Accounting Office, 2002.
Warning: These citations may not always be 100% accurate.