Carlson, L., & Richardson, L. (2012). Ruby. Receptury (1st edition.). Helion.
Cita Chicago Style (17a ed.)Carlson, Lucas, y Leonard Richardson. Ruby. Receptury. 1st edition. Helion, 2012.
Cita MLA (9a ed.)Carlson, Lucas, y Leonard Richardson. Ruby. Receptury. 1st edition. Helion, 2012.
Precaución: Estas citas no son 100% exactas.
