APA (7th ed.) Citation

Thesleff, H. (1961). An introduction to the Pythagorean writings of the Hellenistic period. Acta Academiae Aboensis.

Chicago Style (17th ed.) Citation

Thesleff, Holger. "An Introduction to the Pythagorean Writings of the Hellenistic Period." Acta Academiae Aboensis 1961.

MLA (9th ed.) Citation

Thesleff, Holger. "An Introduction to the Pythagorean Writings of the Hellenistic Period." Acta Academiae Aboensis, 1961.

Warning: These citations may not always be 100% accurate.