APA Style

Puchta, Herbert, Stranks, Jeff. (2011). English in Mind . Singapura: Cambridge University Press.

Chicago Style

Puchta, Herbert, Stranks, Jeff. English in Mind. Singapura: Cambridge University Press, 2011. Text.

MLA Style

Puchta, Herbert, Stranks, Jeff. English in Mind. Singapura: Cambridge University Press, 2011. Text.

Turabian Style

Puchta, Herbert, Stranks, Jeff. English in Mind. Singapura: Cambridge University Press, 2011. Print.