APA (7th ed.) Citation

Eklund, K., & Smith, K. (1979). A solar water heater workshop manual (2nd ed.). Ecotope Group.

Chicago Style (17th ed.) Citation

Eklund, Ken, and Ken Smith. A Solar Water Heater Workshop Manual. 2nd ed. [Seattle]: Ecotope Group, 1979.

MLA (9th ed.) Citation

Eklund, Ken, and Ken Smith. A Solar Water Heater Workshop Manual. 2nd ed. Ecotope Group, 1979.