Directly from my private collection OPERATING SYSTEM PRINCIPLES Language: ENGLISH ISBN-10: 0136378439 ISBN-13: Format: HARDCOVER State of conservation: Excellent condition, with normal signs of aging. FOR MORE PHOTOS OR ANY QUESTIONS, DO NOT HESITATE TO CONTACT ME FOR ADDITIONAL PHOTOS OR ANY QUESTIONS, FEEL FREE TO CONTACT ME SEVERAL OTHER BOOKS AVAILABLE. CONTACT ME, NOT EVERYTHING I HAVE POSTED ON EBAY. Check out my other listings solocosebelle1 Items will be sent PROTECTED. I give maximum seriousness. .