Earl, P. (1978). Personal and property protection: The executive's guide to security. M and M Association.
Cita Chicago Style (17a ed.)Earl, Philip. Personal and Property Protection: The Executive's Guide to Security. Los Angeles: M and M Association, 1978.
Cita MLA (9a ed.)Earl, Philip. Personal and Property Protection: The Executive's Guide to Security. M and M Association, 1978.
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