International Business Machines (IBM). IBM leads others in patent leadership for 21st straight year. IN Business News. Manila Bulletin.
Citace podle Chicago (17th ed.)International Business Machines (IBM). "IBM Leads Others in Patent Leadership for 21st Straight Year. IN Business News." Manila Bulletin .
Citace podle MLA (9th ed.)International Business Machines (IBM). "IBM Leads Others in Patent Leadership for 21st Straight Year. IN Business News." Manila Bulletin, .
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