a MacBook Air? 15 June 2012. ^ Roman Loyola (June 15, 2012). "MacBook Pro with Retina Display redefines the concept of a 'pro' laptop" . Macworld . Mac Publishing . http://www.macworld.com/article/1167286/macbook_pro_with_retina_display_redefines_the_concept_of_a_pro_laptop.html . Retrieved August 26, 2012 .   ^ Ackerman, Dan (June 11, 2012). "Apple MacBook Pro with Retina Display review"