APA (7th ed.) Citation

De Gulan, M. V. R. (1999). Effects of the use of videotapes on biology students achievement, retention and attitude towards science.

Chicago Style (17th ed.) Citation

De Gulan, Ma. Victoria R. Effects of the Use of Videotapes on Biology Students Achievement, Retention and Attitude Towards Science. 1999.

MLA (9th ed.) Citation

De Gulan, Ma. Victoria R. Effects of the Use of Videotapes on Biology Students Achievement, Retention and Attitude Towards Science. 1999.

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