Παραπομπή APA

(1990). Geologica Rhodopica: 2nd Hellenic-Bulgarian-Symposium Thessaloniki, 1989: Scientific Annals School of Geology Fuculty of Science. Thessaloniki: Aristotle University.

Παραπομπή Chicago Style

Geologica Rhodopica: 2nd Hellenic-Bulgarian-Symposium Thessaloniki, 1989: Scientific Annals School of Geology Fuculty of Science. Thessaloniki: Aristotle University, 1990.

Παραπομπή MLA

Geologica Rhodopica: 2nd Hellenic-Bulgarian-Symposium Thessaloniki, 1989: Scientific Annals School of Geology Fuculty of Science. Thessaloniki: Aristotle University, 1990.

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