Gaya APA

Stickels, T. (1976). Math puzzles and brainteasers, grades 3–5: over 300 puzzles that teach math and problem-solving skills . San Francisco: Jossey-Bass.

Gaya MLA

Stickels, Terry. "Math puzzles and brainteasers, grades 3–5: over 300 puzzles that teach math and problem-solving skills". San Francisco: Jossey-Bass, 1976. Electronic Resource.