Gaya APA

Thinkers, T, F. (1993). Thinking Skills Level 2 Mind Your P'S & Clue : Challenges Pattern Recognition, Category Sorting & Calender Skills! (Cet. 1). Hongkong: Schofield & Sims Ltd.

Gaya MLA

Thinkers, Tim, Fun. "Thinking Skills Level 2 Mind Your P'S & Clue : Challenges Pattern Recognition, Category Sorting & Calender Skills!". Cet. 1 Hongkong: Schofield & Sims Ltd, 1993. Text.