APA Citation

Gasper, D. Studying Aid: Some Methods. The Hague NL: Institute of Social Studies.

Chicago Style Citation

Gasper, Des. Studying Aid: Some Methods. The Hague NL: Institute of Social Studies.

MLA Citation

Gasper, Des. Studying Aid: Some Methods. The Hague NL: Institute of Social Studies.

Warning: These citations may not always be 100% accurate.