Cita APA (7a ed.)

Finnström, O. (1971). Studies on maturity in newborn infants. [s.n.].

Cita Chicago Style (17a ed.)

Finnström, Orvar. Studies on Maturity in Newborn Infants. [S.l.]: [s.n.], 1971.

Cita MLA (9a ed.)

Finnström, Orvar. Studies on Maturity in Newborn Infants. [s.n.], 1971.