APA (7th ed.) Citation

Siegner, O. (1969). Vierwaldstätter See.

Chicago Style (17th ed.) Citation

Siegner, Otto. Vierwaldstätter See. 1969.

MLA (9th ed.) Citation

Siegner, Otto. Vierwaldstätter See. 1969.

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