BibTeX:
@incollection{Various,
  author = {Various},
  title = {Today humanity is increasingly concerned – and rightly so – with ‘the quality of life’},
  booktitle = {bahaistories.com archive},
  url = {https://bahaistories.com/subject/abdul-baha},
}

APA:
Various. Today humanity is increasingly concerned – and rightly so – with ‘the quality of life’. In *bahaistories.com archive*.

MLA:
Various. "Today humanity is increasingly concerned – and rightly so – with ‘the quality of life’." *bahaistories.com archive*, n.d..

Chicago:
Various. "Today humanity is increasingly concerned – and rightly so – with ‘the quality of life’." In *bahaistories.com archive*, n.d..