Cita APA (7th ed.)

Wiegner, A., & Nowakowa, I. (2005). Observation, hypothesis, introspection. Rodopi.

Cita Chicago (17th ed.)

Wiegner, Adam, i Izabella Nowakowa. Observation, Hypothesis, Introspection. Amsterdam ; New York: Rodopi, 2005.

Cita MLA (9th ed.)

Wiegner, Adam, i Izabella Nowakowa. Observation, Hypothesis, Introspection. Rodopi, 2005.