1958/1959; International poster annual

MLA

Niggli, A. 1958/1959; International Poster Annual. Teufen: Arthur Niggli, 1958.

APA

Niggli, A. (1958). 1958/1959; International poster annual. Teufen: Arthur Niggli.

Chicago

Niggli, A. 1958/1959; International Poster Annual. Teufen: Arthur Niggli, 1958.