APA (7th ed.) Citation

Grigson, G. (1975). The Penguin book of ballads / chosen and introduced by Geoffrey Grigson. Penguin.

Chicago Style (17th ed.) Citation

Grigson, Geoffrey. The Penguin Book of Ballads / Chosen and Introduced by Geoffrey Grigson. Harmondsworth (etc.): Penguin, 1975.

MLA (9th ed.) Citation

Grigson, Geoffrey. The Penguin Book of Ballads / Chosen and Introduced by Geoffrey Grigson. Penguin, 1975.

Warning: These citations may not always be 100% accurate.