(1984). The Penguin book of bird poetry. Penguin.
Chicagoスタイル(17版)引用形式The Penguin Book of Bird Poetry. Middlesex: Penguin, 1984.
MLA(9版)引用形式The Penguin Book of Bird Poetry. Penguin, 1984.
警告: この引用は必ずしも正確ではありません.
(1984). The Penguin book of bird poetry. Penguin.
Chicagoスタイル(17版)引用形式The Penguin Book of Bird Poetry. Middlesex: Penguin, 1984.
MLA(9版)引用形式The Penguin Book of Bird Poetry. Penguin, 1984.