APA (7th ed.) Citation

(1971). Zeichen, Marken, Zinken: = Signs, brands, marks. Niggli.

Chicago Style (17th ed.) Citation

Zeichen, Marken, Zinken: = Signs, Brands, Marks. Teufen: Niggli, 1971.

MLA (9th ed.) Citation

Zeichen, Marken, Zinken: = Signs, Brands, Marks. Niggli, 1971.

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