Cita APA (7a ed.)

Gregg, C. F. (1974). The ten black pearls: A tale without a moral. White Lion Publishers.

Cita Chicago Style (17a ed.)

Gregg, Cecil Freeman. The Ten Black Pearls: A Tale Without a Moral. London: White Lion Publishers, 1974.

Cita MLA (8a ed.)

Gregg, Cecil Freeman. The Ten Black Pearls: A Tale Without a Moral. White Lion Publishers, 1974.