Healy, R. J. (1971). Industrial security management: A cost effective approach. American Management Association.
শিকাগো স্টাইলে সাইটেশনHealy, Richard J. Industrial Security Management: A Cost Effective Approach. USA: American Management Association, 1971.
এমএলএ সাইটেশনHealy, Richard J. Industrial Security Management: A Cost Effective Approach. American Management Association, 1971.
সতর্কবাণী: সাইটেশন সবসময় 100% নির্ভুল হতে পারে না.