APA (7th ed.) Citation

Flagg, B. N. (1990). Formative evaluation for educational technologies. Lawrence Erlbaum Associates.

Chicago Style (17th ed.) Citation

Flagg, Barbara N. Formative Evaluation for Educational Technologies. Hillsdale (New Jersey) [etc.]: Lawrence Erlbaum Associates, 1990.

MLA (9th ed.) Citation

Flagg, Barbara N. Formative Evaluation for Educational Technologies. Lawrence Erlbaum Associates, 1990.