APA (7th ed.) Citation

Lexington Data, Inc. (1978). Energy systems: Solar, wind, water, geothermal (1977). LDI.

Chicago Style (17th ed.) Citation

Lexington Data, Inc. Energy Systems: Solar, Wind, Water, Geothermal (1977). Ashland, Mass.: LDI, 1978.

MLA (9th ed.) Citation

Lexington Data, Inc. Energy Systems: Solar, Wind, Water, Geothermal (1977). LDI, 1978.

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