Prostate-Specific Antigen (PSA Test): Questions & Answers (2017). National Cancer Institute Member Services.
Chicago Style (17th ed.) CitationProstate-Specific Antigen (PSA Test): Questions & Answers (2017). National Cancer Institute Member Services.
MLA引文Prostate-Specific Antigen (PSA Test): Questions & Answers (2017). National Cancer Institute Member Services.
警告:這些引文格式不一定是100%准確.