Mainly because each style has its own formatting nuances that evolve over time and never all facts is available for each and every reference entry or article, Encyclopedia.com can't assure each citation it generates. Agne vratapate vrataṃ cariṣyāmi (Vājasaneyī-Saṃhitā with the Śukla [White] Yajurveda one.5): "O Agni Lord of Vows, https://directorypixels.com/listings13326164/helping-the-others-realize-the-advantages-of-mantra