Alison Hawes. PYP L1 Elephant Walk single (Pearson Baccalaureate PrimaryYears Programme). Heinemann.
Chicagoスタイル(17版)引用形式Alison Hawes. PYP L1 Elephant Walk Single (Pearson Baccalaureate PrimaryYears Programme). Heinemann.
MLA(9版)引用形式Alison Hawes. PYP L1 Elephant Walk Single (Pearson Baccalaureate PrimaryYears Programme). Heinemann.
警告: この引用は必ずしも正確ではありません.