Cita APA (7a ed.)
Lahey, T. M., & Walker, T. D. L. (Jun 23, 1996). Elf90 A First Programming Language. Association for Engineering Education - Engineering Library Division Papers.
Cita Chicago Style (17a ed.)
Lahey, Thomas M., y Thomas D L. Walker. "Elf90 A First Programming Language." Association for Engineering Education - Engineering Library Division Papers Jun 23, 1996.
Cita MLA (9a ed.)
Lahey, Thomas M., y Thomas D L. Walker. "Elf90 A First Programming Language." Association for Engineering Education - Engineering Library Division Papers, Jun 23, 1996.
Precaución: Estas citas no son 100% exactas.