APA استشهاد

Upender Narayan Singh. Hindi ki pragatisheel kavita. Hindi sahitya sansar.

استشهاد بنمط شيكاغو

Upender Narayan Singh. Hindi Ki Pragatisheel Kavita. Delhi: Hindi sahitya sansar.

MLA استشهاد

Upender Narayan Singh. Hindi Ki Pragatisheel Kavita. Hindi sahitya sansar.