APA

Bühlmann W., . (1990). With eyes to see. New York: St Paul.

Chicago

Bühlmann Walbert, . 1990. With eyes to see. New York: St Paul.

Harvard

Bühlmann W., . (1990). With eyes to see. New York: St Paul.

MLA

Bühlmann Walbert, . With eyes to see. New York: St Paul. 1990.