APA (7th ed.) Citation

ANDERSON, B. (1990). GEM TESTING. BUTTERWORTH.

Chicago Style (17th ed.) Citation

ANDERSON, B.W. GEM TESTING. NEW DELHI: BUTTERWORTH, 1990.

MLA (9th ed.) Citation

ANDERSON, B.W. GEM TESTING. BUTTERWORTH, 1990.

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