Cita APA

Kelley, W. C., & Thompson, H. C. (1957). Vegetable crops (5.). Mc Graw Hill Book company.

Chicago Edition Citation

Kelley, W C., i H C. Thompson. Vegetable Crops. 5. NewYork: Mc Graw Hill Book company, 1957.

Cita MLA

Kelley, W C., i H C. Thompson. Vegetable Crops. 5. Mc Graw Hill Book company, 1957.