Marco, J. G., & Worth Holling, M. R. D. (1987). Silent Spring Revisited. American Chemical Society.
Chicago Style aipamenaMarco, J Gino, and M Robert Durham Worth Holling. Silent Spring Revisited. Washington: American Chemical Society, 1987.
MLA aipamenaMarco, J Gino, and M Robert Durham Worth Holling. Silent Spring Revisited. American Chemical Society, 1987.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.