Cita APA (7a ed.)

Sweet's Group. (1990). Sweet'scatalog file. Products for international construction. Mc Graw Hill.

Cita Chicago Style (17a ed.)

Sweet's Group. Sweet'scatalog File. Products for International Construction. Nueva York: Mc Graw Hill, 1990.

Cita MLA (9a ed.)

Sweet's Group. Sweet'scatalog File. Products for International Construction. Mc Graw Hill, 1990.