Gaya APA

Thoreau, H, D, T, H, D. (1993). Faith in a seed : the dispersion of seeds & other late natural history writings.-- . America: Island Press.

Gaya MLA

Thoreau, Henry, D., Thoreau,, Henry, D.. "Faith in a seed : the dispersion of seeds & other late natural history writings.--". America: Island Press, 1993. Buku.