Παραπομπή APA

Henning, H. M., & Strohecker, R. (1966). Vitamin assay: Tested methods. Verlag Paul Parey.

Παραπομπή Chicago Style

Henning, H M., και R. Strohecker. Vitamin Assay: Tested Methods. Berlin: Verlag Paul Parey, 1966.

Παραπομπή MLA

Henning, H M., και R. Strohecker. Vitamin Assay: Tested Methods. Verlag Paul Parey, 1966.