Cita APA (7th ed.)

Boothroyd Jennifer. (2009). First Step Non Fiction What Is A Liquid. Lerner.

Cita Chicago (17th ed.)

Boothroyd Jennifer. First Step Non Fiction What Is A Liquid. UK: Lerner, 2009.

Cita MLA (9th ed.)

Boothroyd Jennifer. First Step Non Fiction What Is A Liquid. Lerner, 2009.