APA (7th ed.) Citation

Hecker, K. (1990). Der aA Brief CTMMA 78: NABU 1990/139.

Chicago Style (17th ed.) Citation

Hecker, K. Der AA Brief CTMMA 78: NABU 1990/139. 1990.

MLA (8th ed.) Citation

Hecker, K. Der AA Brief CTMMA 78: NABU 1990/139. 1990.

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