APA

American Chemical Society, . (19). Special conference / American Chemical Society, Division of Agrochemicals. Washington, DC: American Chemical Society.

Chicago

American Chemical Society, . 19. Special conference / American Chemical Society, Division of Agrochemicals. Washington, DC: American Chemical Society.

Harvard

American Chemical Society, . (19). Special conference / American Chemical Society, Division of Agrochemicals. Washington, DC: American Chemical Society.

MLA

American Chemical Society, . Special conference / American Chemical Society, Division of Agrochemicals. Washington, DC: American Chemical Society. 19.