Cita APA (7th ed.)
ebrary, Inc, & Porter, D. L. (2000). Baseball (Rev. and expanded ed.). Greenwood Press.
Cita Chicago (17th ed.)
ebrary, Inc, i David L. Porter. Baseball. Rev. and expanded ed. Westport, CT: Greenwood Press, 2000.
Cita MLA (9th ed.)
ebrary, Inc, i David L. Porter. Baseball. Rev. and expanded ed. Greenwood Press, 2000.
Atenció: Aquestes cites poden no estar 100% correctes.