Παραπομπή APA

Tootill, E., & ...[et al.]. (1988). Dictionary of biology. Facts on File.

Παραπομπή Chicago Style

Tootill, Elizabeth, και ...[et al.]. Dictionary of Biology. New York: Facts on File, 1988.

Παραπομπή MLA

Tootill, Elizabeth, και ...[et al.]. Dictionary of Biology. Facts on File, 1988.