00270nam a2200109Ia 450000500170000000800410001708200150005810000140007324500280008726000370011530000080015220260205040944.0260111s9999||||xx |||||||||||||| ||und||  a517  Ab28C  aAbbott, P 0aTeach yourself calculus  aLondonbEnglish Universityc1955  a380