Cita APA (7a ed.)

Plutarco & Helmbold, W. C. (1957). Plutarch's moralia. William Heinemann [etc.].

Cita Chicago Style (17a ed.)

Plutarco y William C. Helmbold. Plutarch's Moralia. London [etc.]: William Heinemann [etc.], 1957.

Cita MLA (9a ed.)

Plutarco y William C. Helmbold. Plutarch's Moralia. William Heinemann [etc.], 1957.