APA (7th ed.) Citation

Engel, H. (1950). Johann Sebastian Bach: Von Hans Engel. De Gruyter.

Chicago Style (17th ed.) Citation

Engel, Hans. Johann Sebastian Bach: Von Hans Engel. Berlin: De Gruyter, 1950.

MLA (8th ed.) Citation

Engel, Hans. Johann Sebastian Bach: Von Hans Engel. De Gruyter, 1950.

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