Lovell, K., & Smith, C. H. J. (1975). Two grades arithmetic; book 1: With answers (rev. ed.). Ginn & Co.
Chicagoスタイル(17版)引用形式Lovell, K., , C. H. J. Smith. Two Grades Arithmetic; Book 1: With Answers. rev. ed. Bucks Londo: Ginn & Co, 1975.
MLA(9版)引用形式Lovell, K., , C. H. J. Smith. Two Grades Arithmetic; Book 1: With Answers. rev. ed. Ginn & Co, 1975.
警告: この引用は必ずしも正確ではありません.