Author

Harold Francis Blum

3 books found

Cover of Carcinogenesis by ultraviolet light

Carcinogenesis by ultraviolet light

Harold Francis Blum · First published 1959

Cover of Time's arrow and evolution

Time's arrow and evolution

Harold Francis Blum · First published 1951

Cover of Photodynamic action and diseases caused by light

Photodynamic action and diseases caused by light

Harold Francis Blum · First published 1941