APA (7th ed.) Citation

Pop, G. Tithonian to Hauterivian praecalpionellids and calpionellids: Bioevents and biozones.

Chicago Style (17th ed.) Citation

Pop, Grigore. Tithonian to Hauterivian Praecalpionellids and Calpionellids: Bioevents and Biozones.

MLA (9th ed.) Citation

Pop, Grigore. Tithonian to Hauterivian Praecalpionellids and Calpionellids: Bioevents and Biozones.

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