Porcellino, M. R. (1989). Through the telescope: A guide for the amateur astronomer. TAB Books.
Cita Chicago Style (17a ed.)Porcellino, Michael R. Through the Telescope: A Guide for the Amateur Astronomer. Blue Ridge Summit, PA: TAB Books, 1989.
Cita MLA (9a ed.)Porcellino, Michael R. Through the Telescope: A Guide for the Amateur Astronomer. TAB Books, 1989.
Precaución: Estas citas no son 100% exactas.