APA (7th ed.) Citation

Ladle, R. Extinct or extant? Woodpeckers and rhinoceros. Pensoft Publishers.

Chicago Style (17th ed.) Citation

Ladle, Richard. Extinct or Extant? Woodpeckers and Rhinoceros. Pensoft Publishers.

MLA (9th ed.) Citation

Ladle, Richard. Extinct or Extant? Woodpeckers and Rhinoceros. Pensoft Publishers.

Warning: These citations may not always be 100% accurate.