APA

Nestlé-Stiftung, . (1980). Nestlé Foundation publication series. Bern [u.a.]: Huber.

Chicago

Nestlé-Stiftung, . 1980. Nestlé Foundation publication series. Bern [u.a.]: Huber.

Harvard

Nestlé-Stiftung, . (1980). Nestlé Foundation publication series. Bern [u.a.]: Huber.

MLA

Nestlé-Stiftung, . Nestlé Foundation publication series. Bern [u.a.]: Huber. 1980.