Παραπομπή σε μορφή APA (7η εκδ.)

Frees, E. W. (2004). Longitudinal and panel data: Analysis and applications in the social sciences. Cambridge University Press.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Frees, Edward W. Longitudinal and Panel Data: Analysis and Applications in the Social Sciences. Cambridge, UK: Cambridge University Press, 2004.

Παραπομπή σε μορφή MLA (8th εκδ.)

Frees, Edward W. Longitudinal and Panel Data: Analysis and Applications in the Social Sciences. Cambridge University Press, 2004.