ITEM(S): This listing is for a Man-Machine-Environment System Engineering: Proceedings Of The 19Th Interna... CONDITION: Basically unused. The cover is lightly worn. RETURN POLICY: If, for any reason, you wish to initiate a return, please contact us first. We will do everything we can to assist you, reimburse you for your time, and refund you your money. We make our living with this business and are punished for any defects we incur upon on our account. We are happy to accept returns for seller errors and mistakes in listing. If you are unsure about anything, please send a question before you buy or bid, as our refund policy does not include buyer?s remorse or buyer?s errors in reading or understanding the description. FEEDBACK: Please contact us if you are unhappy with your purchase or your experience. Negative and even neutral feedback actually add defects to a seller. We raise our family with this business and any damaging feedback can severely affect us, please let us help you by contacting us first if you have any issues. Thank you for viewing! If you have any questions, please don't hesitate to ask!