APA (7th ed.) Citation

Flotow, F. v., Curphy, M., Hood, A., Swift, T., Chard, G., & Davies, N. Martha: Twelve o'clock, twelve o'clock.

Chicago Style (17th ed.) Citation

Flotow, Friedrich von, Margaret Curphy, Ann Hood, Tom Swift, Geoffrey Chard, and Noel Davies. Martha: Twelve O'clock, Twelve O'clock.

MLA (9th ed.) Citation

Flotow, Friedrich von, et al. Martha: Twelve O'clock, Twelve O'clock.