APA (7th ed.) Citation

Griffin, R. E. M. The A-type stars: Normal or ... what?

Chicago Style (17th ed.) Citation

Griffin, R. E. M. The A-type Stars: Normal or ... What?

MLA (9th ed.) Citation

Griffin, R. E. M. The A-type Stars: Normal or ... What?

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