Day, R. H. (1963). Recursive programming and production response. North-Holland Pub.
Cita Chicago (17th ed.)Day, Richard H. Recursive Programming and Production Response. Amsterdam: North-Holland Pub, 1963.
Cita MLA (9th ed.)Day, Richard H. Recursive Programming and Production Response. North-Holland Pub, 1963.
Atenció: Aquestes cites poden no estar 100% correctes.