APA (7th ed.) Citation

(1992). Engelbert Humperdinck zum 70. Todestag. Schmitt.

Chicago Style (17th ed.) Citation

Engelbert Humperdinck Zum 70. Todestag. Siegburg: Schmitt, 1992.

MLA (9th ed.) Citation

Engelbert Humperdinck Zum 70. Todestag. Schmitt, 1992.

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