APA Citation

(1999). Crop card; instructions for punching crop cards. Washington, D.C.: [s.n.].

Chicago Style Citation

Crop Card; Instructions for Punching Crop Cards. Washington, D.C.: [s.n.], 1999.

MLA Citation

Crop Card; Instructions for Punching Crop Cards. Washington, D.C.: [s.n.], 1999.

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