APA (7th ed.) Citation

Helmer-Hirschberg, O., & Helmer, H. (1970). Future opportunities for foundation support. Institute for the Future.

Chicago Style (17th ed.) Citation

Helmer-Hirschberg, Olaf, and Helen Helmer. Future Opportunities for Foundation Support. Middletown, Conn.: Institute for the Future, 1970.

MLA (8th ed.) Citation

Helmer-Hirschberg, Olaf, and Helen Helmer. Future Opportunities for Foundation Support. Institute for the Future, 1970.