Cita APA (7a ed.)

Charnov, E. L. (1976). Optimal foraging, the marginal value theorem. [s.n.].

Cita Chicago Style (17a ed.)

Charnov, Eric L. Optimal Foraging, the Marginal Value Theorem. [S.l.]: [s.n.], 1976.

Cita MLA (9a ed.)

Charnov, Eric L. Optimal Foraging, the Marginal Value Theorem. [s.n.], 1976.