APA (7th ed.) Citation

Heide, L. (2009). Punched-card systems and the early information explosion, 1880 - 1945. Hopkins Univ. Press.

Chicago Style (17th ed.) Citation

Heide, Lars. Punched-card Systems and the Early Information Explosion, 1880 - 1945. Baltimore: Hopkins Univ. Press, 2009.

MLA (9th ed.) Citation

Heide, Lars. Punched-card Systems and the Early Information Explosion, 1880 - 1945. Hopkins Univ. Press, 2009.

Warning: These citations may not always be 100% accurate.