APA (7th ed.) Citation

Radina, M. D., Zainab, G., & Shorouk, A. (2013). The effects of increase and variations in time presentations for second language vocabulary learning. Issues in Language Studies.

Chicago Style (17th ed.) Citation

Radina, Mohamad Deli, Ghareeb-Ali Zainab, and Al-Houti Shorouk. The Effects of Increase and Variations in Time Presentations for Second Language Vocabulary Learning. Issues in Language Studies, 2013.

MLA (9th ed.) Citation

Radina, Mohamad Deli, et al. The Effects of Increase and Variations in Time Presentations for Second Language Vocabulary Learning. Issues in Language Studies, 2013.

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