Cita APA (7a ed.)
Pulford, G. W. (2007). High-security mechanical locks: An encyclopedic reference. Elsevier Butterworth-Heinemann.
Cita Chicago Style (17a ed.)
Pulford, Graham W. High-security Mechanical Locks: An Encyclopedic Reference. Amsterdam ; Boston: Elsevier Butterworth-Heinemann, 2007.
Cita MLA (9a ed.)
Pulford, Graham W. High-security Mechanical Locks: An Encyclopedic Reference. Elsevier Butterworth-Heinemann, 2007.
Precaución: Estas citas no son 100% exactas.