APA

National Cancer Institute (U.S.), . (19). Histologic and ultrastructural studies of tumor regression in inbred guinea pigs after intralesional injection of mycobacterium bovis (BCG) 1, 2. [Washington, D.C: .

Chicago

National Cancer Institute (U.S.), . 19. Histologic and ultrastructural studies of tumor regression in inbred guinea pigs after intralesional injection of mycobacterium bovis (BCG) 1, 2. [Washington, D.C: .

Harvard

National Cancer Institute (U.S.), . (19). Histologic and ultrastructural studies of tumor regression in inbred guinea pigs after intralesional injection of mycobacterium bovis (BCG) 1, 2. [Washington, D.C: .

MLA

National Cancer Institute (U.S.), . Histologic and ultrastructural studies of tumor regression in inbred guinea pigs after intralesional injection of mycobacterium bovis (BCG) 1, 2. [Washington, D.C: . 19.