APA (7th ed.) Citation

Gunther, H., & Gruner, J. (1620). Tetras quaestionum politicarum. Scherff.

Chicago Style (17th ed.) Citation

Gunther, Heinrich, and Johann Gruner. Tetras Quaestionum Politicarum. Altorfi: Scherff, 1620.

MLA (9th ed.) Citation

Gunther, Heinrich, and Johann Gruner. Tetras Quaestionum Politicarum. Scherff, 1620.

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