McGavren, J. (2016). Use A Cabeça! Ruby (1st edition.). Alta Books.
Cita Chicago Style (17a ed.)McGavren, Jay. Use A Cabeça! Ruby. 1st edition. Alta Books, 2016.
Cita MLA (9a ed.)McGavren, Jay. Use A Cabeça! Ruby. 1st edition. Alta Books, 2016.
Precaución: Estas citas no son 100% exactas.
