Cita APA (7a ed.)
American concrete institute 55 year index 1905-1959 / American Concrete Institute: A C I Pub 624.1834 An512.
Cita Chicago Style (17a ed.)
American Concrete Institute 55 Year Index 1905-1959 / American Concrete Institute: A C I Pub 624.1834 An512.
Cita MLA (9a ed.)
American Concrete Institute 55 Year Index 1905-1959 / American Concrete Institute: A C I Pub 624.1834 An512.
Precaución: Estas citas no son 100% exactas.