Cita APA (7a ed.)

Heick, W. (1919). Akrodermatitis chronica atrophicans. Speyer & Kaerner.

Cita Chicago Style (17a ed.)

Heick, Walter. Akrodermatitis Chronica Atrophicans. Freiburg i. Br.: Speyer & Kaerner, 1919.

Cita MLA (8a ed.)

Heick, Walter. Akrodermatitis Chronica Atrophicans. Speyer & Kaerner, 1919.