Παραπομπή σε μορφή APA (7η εκδ.)

PRAMAS, C., & KOUMARAS, P. (2017). PISA & Greek Curriculum of science for last two classes of primary school: Comparative analysis and assessment. Urray.

Παραπομπή σε μορφή Chicago (17η εκδ.)

PRAMAS, CHRISTOS, και PANAGIOTIS KOUMARAS. PISA & Greek Curriculum of Science for Last Two Classes of Primary School: Comparative Analysis and Assessment. Urray, 2017.

Παραπομπή σε μορφή MLA (8th εκδ.)

PRAMAS, CHRISTOS, και PANAGIOTIS KOUMARAS. PISA & Greek Curriculum of Science for Last Two Classes of Primary School: Comparative Analysis and Assessment. Urray, 2017.