APA (7th ed.) Citation

Keen, R. (1988). A checklist of Melanchthon imprints through 1560. Sixteenth century bibliography.

Chicago Style (17th ed.) Citation

Keen, Ralph. "A Checklist of Melanchthon Imprints Through 1560." Sixteenth Century Bibliography 1988.

MLA (8th ed.) Citation

Keen, Ralph. "A Checklist of Melanchthon Imprints Through 1560." Sixteenth Century Bibliography, 1988.

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