TY - BOOK AU - Gerardus,Anne Van Arkel TI - Modification of ultraviolet and formaldehyde mutagenesis in aspergillus nidulans AV - BOT QH465.U4G47 PY - 1958/// CY - Utrecht PB - Drukkerrij Elinkwijk KW - Aspergillus KW - Utraviolet rays KW - Mutagens N1 - Includes bibliographical references ER -