APA (7th ed.) Citation

Portune, R. (1958). The old man and the sky. Barrie Books.

Chicago Style (17th ed.) Citation

Portune, Robert. The Old Man and the Sky. London: Barrie Books, 1958.

MLA (8th ed.) Citation

Portune, Robert. The Old Man and the Sky. Barrie Books, 1958.

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