APA (7th ed.) Citation

Friedrich, I., Friderich, P., Friedrich, P. b. R., Friderich, b. R., Fridericus, R., Fridereich, R., . . . Fridericus, P. .

Chicago Style (17th ed.) Citation

Friedrich, IV., et al. .

MLA (9th ed.) Citation

Friedrich, IV., et al. .

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