APA Style
Richards, Jon, Ed Simkins. ([s.a]).
The Natural World .
[s.l]:
Owl Kids.
Chicago Style
Richards, Jon, Ed Simkins.
The Natural World.
[s.l]:
Owl Kids,
[s.a].
Text.
MLA Style
Richards, Jon, Ed Simkins.
The Natural World.
[s.l]:
Owl Kids,
[s.a].
Text.
Turabian Style
Richards, Jon, Ed Simkins.
The Natural World.
[s.l]:
Owl Kids,
[s.a].
Print.