APA (7th ed.) Citation
Shumeiko, N., & Krajčovičová, L. Testing Vocabulary and Grammar: Online Techniques.
Chicago Style (17th ed.) Citation
Shumeiko, Natalia, and Linda Krajčovičová. Testing Vocabulary and Grammar: Online Techniques.
MLA (9th ed.) Citation
Shumeiko, Natalia, and Linda Krajčovičová. Testing Vocabulary and Grammar: Online Techniques.
Warning: These citations may not always be 100% accurate.