APA (7th ed.) Citation
TWIGG, L. (1990). HEALTH BASED GEOGRAPHICAL INFORMATION SYSTEMS: THEIR POTENTIAL EXAMINED IN THE LIGHT OF EXISTING DATA SOURCES.
Chicago Style (17th ed.) Citation
TWIGG, L. HEALTH BASED GEOGRAPHICAL INFORMATION SYSTEMS: THEIR POTENTIAL EXAMINED IN THE LIGHT OF EXISTING DATA SOURCES. 1990.
MLA (9th ed.) Citation
TWIGG, L. HEALTH BASED GEOGRAPHICAL INFORMATION SYSTEMS: THEIR POTENTIAL EXAMINED IN THE LIGHT OF EXISTING DATA SOURCES. 1990.
Warning: These citations may not always be 100% accurate.