Citazione Stile APA (7a Edizione)

Schonell, F. J., Serjeant, I., & Nickless, W. (1979). The Happy venture readers (First published 1939, 2nd ed. 1958, rev. ed. 1971, 7th impression.). Oliver and Boyd.

Citazione stile Chigago Style (17a edizione)

Schonell, Fred J., Irene Serjeant, e Will Nickless. The Happy Venture Readers. First published 1939, 2nd ed. 1958, rev. ed. 1971, 7th impression. Edinburgh: Oliver and Boyd, 1979.

Citatione MLA (9a ed.)

Schonell, Fred J., et al. The Happy Venture Readers. First published 1939, 2nd ed. 1958, rev. ed. 1971, 7th impression. Oliver and Boyd, 1979.