Παραπομπή σε μορφή APA (7η εκδ.)

SpringerLink (Online service) & Scheerens, J. (2014). Effectiveness of Time Investments in Education: Insights from a review and meta-analysis. Springer International Publishing : Imprint: Springer.

Παραπομπή σε μορφή Chicago (17η εκδ.)

SpringerLink (Online service) και Jaap Scheerens. Effectiveness of Time Investments in Education: Insights from a Review and Meta-analysis. Cham: Springer International Publishing : Imprint: Springer, 2014.

Παραπομπή σε μορφή MLA (8th εκδ.)

SpringerLink (Online service) και Jaap Scheerens. Effectiveness of Time Investments in Education: Insights from a Review and Meta-analysis. Springer International Publishing : Imprint: Springer, 2014.