Ophthalmologica Extra Referencing Guide
(updated Apr 2024)

How do you cite a book in the Ophthalmologica Extra referencing style? (2024 Guide)

Books are written works or compositions that have been published, many of which might be in digital version. Here’s how to cite a book in Ophthalmologica Extra

Here’s an example book citation in Ophthalmologica Extra using placeholders: So if we want to cite, for example, “I Know Why the Caged Bird Sings” by Maya Angelou we’d do so like this:
Ophthalmologica Extra citation: And an in-text citation book citation in Ophthalmologica Extra looks like this: [1]


Automate citations and referencing in Ophthalmologica Extra with our tool, Citationsy.
It’s free to try and over 400 000 students and researchers already use it.
Click here sign up

How to reference a journal article in the Ophthalmologica Extra citation style?

How do you cite scientific papers in Ophthalmologica Extra format?

Use the following template to cite a journal article using the Ophthalmologica Extra citation format.

Here’s a Ophthalmologica Extra journal citation example using placeholders: So if we want to reference this scientific article: “Testing consumer preferences for iced-coffee: Does the drinking environment have any influence?” by C. Petit and J.M. Sieffermann in Ophthalmologica Extra: