Oosterhout, Mascha van. : Oracle Digital Assistant : a Guide to Enterprise-Grade Chatbots / Luc Bors, Ardhendu Samajdwer, Mascha van Oosterhout. [O'Reilly electronic resource]
Opalesque (Firm) : Tactical portfolios : Strategies and tactics for investing in hedge funds and liquid alternatives / Bailey McCann ; with contributions from Opalesque editors. [O'Reilly electronic resource]
2014
1
Opalewski, John. : Unshakable you [Hoopla electronic resource] / John Opalewski.
Opara, Anna, / Tłumaczenie. : Jak być silną i wysoko wrażliwą : kiedy kobieta czuje za mocno / Sylvia Harke ; przekład: Anna Opara.
2021
1
Opara, Eddie, 1972- / https://id.oclc.org/worldcat/entity/E39PCjGHxJdPyC9Xkmt7R6hT73 : Color works : best practices for graphic designers : an essential guide to understanding and applying color design principles / Eddie Opara, John Cantwell. [O'Reilly electronic resource]
Opelt, Amanda, / narrator. : A year of biblical womanhood : how a liberated woman found herself sitting on her roof, covering her head, and calling her husband 'master' [Hoopla electronic resource] / Rachel Held Evans.
Open 4 Business Production (Firm) : Parks and recreation. Season one [(DVD) videorecording] / Open 4 Business Production, LLC ; Deedle-Dee Productions ; Universal Media Studios.