APA (7th ed.) Citation

Title: Earthworm Anatomy 2., Title: Hydra-life Cycle, Title: Animal Kingdom, T., & Title: Earthworm Anatomy 3. Protozoa, the.

Chicago Style (17th ed.) Citation

Title: Earthworm Anatomy 2., Title: Hydra-life Cycle, The Title: Animal Kingdom, and Title: Earthworm Anatomy 3. Protozoa, the.

MLA (9th ed.) Citation

Title: Earthworm Anatomy 2., et al. Protozoa, the.