(1975). 1975 Britannica book of the year. Encyclopaedia Britannica.
Chicagoスタイル(17版)引用形式1975 Britannica Book of the Year. Encyclopaedia Britannica, 1975.
MLA(9版)引用形式1975 Britannica Book of the Year. Encyclopaedia Britannica, 1975.
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