APA (7th ed.) Citation

Bäcker, H. (1990). "SGRA". Rainer.

Chicago Style (17th ed.) Citation

Bäcker, Heimrad. "SGRA". Berlin: Rainer, 1990.

MLA (9th ed.) Citation

Bäcker, Heimrad. "SGRA". Rainer, 1990.

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