Joyce, Edward J. Modula-2 : a seafarer's manual & shipyard guide / Edward J. Joyce. - Reading, Massachusetts : Addison-Wesley Publishing Company, 1985. - XVI, 270 s. : il. ; 23 cm. Bibliogr. s. 254-256. Indeks. ISBN: 0201115875 Universal Decimal Class. No.: 681.3.06 : 800.92