Cita APA

Howes, . F. N. (1949). Vegetable Gums and resins. Chronica Botanica co.

Chicago Edition Citation

Howes, F N. Vegetable Gums and Resins. U S A: Chronica Botanica co, 1949.

Cita MLA

Howes, F N. Vegetable Gums and Resins. Chronica Botanica co, 1949.