APA引文

Lean, G. A. (1980). The training of spatial abilities: A bibliography. Mathematics Education Centre, Papua New Guinea University of Technology.

Chicago Style (17th ed.) Citation

Lean, G. A. The Training of Spatial Abilities: A Bibliography. Lae: Mathematics Education Centre, Papua New Guinea University of Technology, 1980.

MLA引文

Lean, G. A. The Training of Spatial Abilities: A Bibliography. Mathematics Education Centre, Papua New Guinea University of Technology, 1980.

警告：這些引文格式不一定是100％准確.