Cita APA (7th ed.)
Frobes, J. (1927). PSYCHOLOGIA SPECULATIVA IN USUM SCHOLARUM.
Cita Chicago (17th ed.)
Frobes, Joseph. PSYCHOLOGIA SPECULATIVA IN USUM SCHOLARUM. 1927.
Cita MLA (9th ed.)
Frobes, Joseph. PSYCHOLOGIA SPECULATIVA IN USUM SCHOLARUM. 1927.
Atenció: Aquestes cites poden no estar 100% correctes.